Home / 5,545.88-7,640.30-3,864.23

Finding the Fourth Proportional to 5,545.88, 7,640.30 and 3,864.23

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Solution

The fourth proportional to 5,545.88, 7,640.30 and 3,864.23 is: 5,323.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,545.88 : 7,640.30 = 3,864.23 : x
  2. Step 2: Convert to fraction form
    5,545.88/7,640.30 = 3,864.23/x
  3. Step 3: Cross multiply
    5,545.88x = 7,640.30 × 3,864.23
  4. Step 4: Simplify right side
    5,545.88x = 29,523,905.23
  5. Step 5: Solve for x
    x = 29,523,905.23/5,545.88
  6. Step 6: Final answer
    x = 5,323.58

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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.