Home / 3,721.40-5,582.10-3,174.65

Finding the Fourth Proportional to 3,721.40, 5,582.10 and 3,174.65

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Solution

The fourth proportional to 3,721.40, 5,582.10 and 3,174.65 is: 4,761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.40 : 5,582.10 = 3,174.65 : x
  2. Step 2: Convert to fraction form
    3,721.40/5,582.10 = 3,174.65/x
  3. Step 3: Cross multiply
    3,721.40x = 5,582.10 × 3,174.65
  4. Step 4: Simplify right side
    3,721.40x = 17,721,213.77
  5. Step 5: Solve for x
    x = 17,721,213.77/3,721.40
  6. Step 6: Final answer
    x = 4,761.98

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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.