Home / 5,471.92-7,551.20-2,987.92

Finding the Fourth Proportional to 5,471.92, 7,551.20 and 2,987.92

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Solution

The fourth proportional to 5,471.92, 7,551.20 and 2,987.92 is: 4,123.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.92 : 7,551.20 = 2,987.92 : x
  2. Step 2: Convert to fraction form
    5,471.92/7,551.20 = 2,987.92/x
  3. Step 3: Cross multiply
    5,471.92x = 7,551.20 × 2,987.92
  4. Step 4: Simplify right side
    5,471.92x = 22,562,381.50
  5. Step 5: Solve for x
    x = 22,562,381.50/5,471.92
  6. Step 6: Final answer
    x = 4,123.30

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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.