Home / 5,545.56-7,642.35-3,970.92

Finding the Fourth Proportional to 5,545.56, 7,642.35 and 3,970.92

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Solution

The fourth proportional to 5,545.56, 7,642.35 and 3,970.92 is: 5,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,545.56 : 7,642.35 = 3,970.92 : x
  2. Step 2: Convert to fraction form
    5,545.56/7,642.35 = 3,970.92/x
  3. Step 3: Cross multiply
    5,545.56x = 7,642.35 × 3,970.92
  4. Step 4: Simplify right side
    5,545.56x = 30,347,160.46
  5. Step 5: Solve for x
    x = 30,347,160.46/5,545.56
  6. Step 6: Final answer
    x = 5,472.33

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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.