Home / 2,516.28-3,472.24-1,397.20

Finding the Fourth Proportional to 2,516.28, 3,472.24 and 1,397.20

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Solution

The fourth proportional to 2,516.28, 3,472.24 and 1,397.20 is: 1,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.28 : 3,472.24 = 1,397.20 : x
  2. Step 2: Convert to fraction form
    2,516.28/3,472.24 = 1,397.20/x
  3. Step 3: Cross multiply
    2,516.28x = 3,472.24 × 1,397.20
  4. Step 4: Simplify right side
    2,516.28x = 4,851,413.73
  5. Step 5: Solve for x
    x = 4,851,413.73/2,516.28
  6. Step 6: Final answer
    x = 1,928.01

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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.