Home / 3,572-4,929.36-2,174.48

Finding the Fourth Proportional to 3,572, 4,929.36 and 2,174.48

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Solution

The fourth proportional to 3,572, 4,929.36 and 2,174.48 is: 3,000.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572 : 4,929.36 = 2,174.48 : x
  2. Step 2: Convert to fraction form
    3,572/4,929.36 = 2,174.48/x
  3. Step 3: Cross multiply
    3,572x = 4,929.36 × 2,174.48
  4. Step 4: Simplify right side
    3,572x = 10,718,794.73
  5. Step 5: Solve for x
    x = 10,718,794.73/3,572
  6. Step 6: Final answer
    x = 3,000.78

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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.