Home / 3,994.20-5,511.51-2,225.16

Finding the Fourth Proportional to 3,994.20, 5,511.51 and 2,225.16

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Solution

The fourth proportional to 3,994.20, 5,511.51 and 2,225.16 is: 3,070.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.20 : 5,511.51 = 2,225.16 : x
  2. Step 2: Convert to fraction form
    3,994.20/5,511.51 = 2,225.16/x
  3. Step 3: Cross multiply
    3,994.20x = 5,511.51 × 2,225.16
  4. Step 4: Simplify right side
    3,994.20x = 12,263,991.59
  5. Step 5: Solve for x
    x = 12,263,991.59/3,994.20
  6. Step 6: Final answer
    x = 3,070.45

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Half scale
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Double scale
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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.