Home / 7,125.28-10,689.16-3,434.16

Finding the Fourth Proportional to 7,125.28, 10,689.16 and 3,434.16

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Solution

The fourth proportional to 7,125.28, 10,689.16 and 3,434.16 is: 5,151.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.28 : 10,689.16 = 3,434.16 : x
  2. Step 2: Convert to fraction form
    7,125.28/10,689.16 = 3,434.16/x
  3. Step 3: Cross multiply
    7,125.28x = 10,689.16 × 3,434.16
  4. Step 4: Simplify right side
    7,125.28x = 36,708,285.71
  5. Step 5: Solve for x
    x = 36,708,285.71/7,125.28
  6. Step 6: Final answer
    x = 5,151.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.