Home / 5,287.68-7,925.76-3,440.12

Finding the Fourth Proportional to 5,287.68, 7,925.76 and 3,440.12

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Solution

The fourth proportional to 5,287.68, 7,925.76 and 3,440.12 is: 5,156.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.68 : 7,925.76 = 3,440.12 : x
  2. Step 2: Convert to fraction form
    5,287.68/7,925.76 = 3,440.12/x
  3. Step 3: Cross multiply
    5,287.68x = 7,925.76 × 3,440.12
  4. Step 4: Simplify right side
    5,287.68x = 27,265,565.49
  5. Step 5: Solve for x
    x = 27,265,565.49/5,287.68
  6. Step 6: Final answer
    x = 5,156.43

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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.