Home / 3,707.13-5,115.60-2,135.19

Finding the Fourth Proportional to 3,707.13, 5,115.60 and 2,135.19

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Solution

The fourth proportional to 3,707.13, 5,115.60 and 2,135.19 is: 2,946.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.13 : 5,115.60 = 2,135.19 : x
  2. Step 2: Convert to fraction form
    3,707.13/5,115.60 = 2,135.19/x
  3. Step 3: Cross multiply
    3,707.13x = 5,115.60 × 2,135.19
  4. Step 4: Simplify right side
    3,707.13x = 10,922,777.96
  5. Step 5: Solve for x
    x = 10,922,777.96/3,707.13
  6. Step 6: Final answer
    x = 2,946.42

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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.