Home / 5,614.30-8,420.49-1,665.47

Finding the Fourth Proportional to 5,614.30, 8,420.49 and 1,665.47

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Solution

The fourth proportional to 5,614.30, 8,420.49 and 1,665.47 is: 2,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,614.30 : 8,420.49 = 1,665.47 : x
  2. Step 2: Convert to fraction form
    5,614.30/8,420.49 = 1,665.47/x
  3. Step 3: Cross multiply
    5,614.30x = 8,420.49 × 1,665.47
  4. Step 4: Simplify right side
    5,614.30x = 14,024,073.48
  5. Step 5: Solve for x
    x = 14,024,073.48/5,614.30
  6. Step 6: Final answer
    x = 2,497.92

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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.