Home / 5,122.91-7,684.27-1,660.16

Finding the Fourth Proportional to 5,122.91, 7,684.27 and 1,660.16

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Solution

The fourth proportional to 5,122.91, 7,684.27 and 1,660.16 is: 2,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.91 : 7,684.27 = 1,660.16 : x
  2. Step 2: Convert to fraction form
    5,122.91/7,684.27 = 1,660.16/x
  3. Step 3: Cross multiply
    5,122.91x = 7,684.27 × 1,660.16
  4. Step 4: Simplify right side
    5,122.91x = 12,757,132.74
  5. Step 5: Solve for x
    x = 12,757,132.74/5,122.91
  6. Step 6: Final answer
    x = 2,490.21

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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.