Home / 3,707.28-5,115.60-2,135.52

Finding the Fourth Proportional to 3,707.28, 5,115.60 and 2,135.52

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Solution

The fourth proportional to 3,707.28, 5,115.60 and 2,135.52 is: 2,946.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.28 : 5,115.60 = 2,135.52 : x
  2. Step 2: Convert to fraction form
    3,707.28/5,115.60 = 2,135.52/x
  3. Step 3: Cross multiply
    3,707.28x = 5,115.60 × 2,135.52
  4. Step 4: Simplify right side
    3,707.28x = 10,924,466.11
  5. Step 5: Solve for x
    x = 10,924,466.11/3,707.28
  6. Step 6: Final answer
    x = 2,946.76

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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.