Home / 3,778,564.92-5,215,147.44-2,620,154.76

Finding the Fourth Proportional to 3,778,564.92, 5,215,147.44 and 2,620,154.76

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Solution

The fourth proportional to 3,778,564.92, 5,215,147.44 and 2,620,154.76 is: 3,616,318.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778,564.92 : 5,215,147.44 = 2,620,154.76 : x
  2. Step 2: Convert to fraction form
    3,778,564.92/5,215,147.44 = 2,620,154.76/x
  3. Step 3: Cross multiply
    3,778,564.92x = 5,215,147.44 × 2,620,154.76
  4. Step 4: Simplify right side
    3,778,564.92x = 13,664,493,389,017.81
  5. Step 5: Solve for x
    x = 13,664,493,389,017.81/3,778,564.92
  6. Step 6: Final answer
    x = 3,616,318.28

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.