Home / 5,712.40-8,562.20-3,248.40

Finding the Fourth Proportional to 5,712.40, 8,562.20 and 3,248.40

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Solution

The fourth proportional to 5,712.40, 8,562.20 and 3,248.40 is: 4,868.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.40 : 8,562.20 = 3,248.40 : x
  2. Step 2: Convert to fraction form
    5,712.40/8,562.20 = 3,248.40/x
  3. Step 3: Cross multiply
    5,712.40x = 8,562.20 × 3,248.40
  4. Step 4: Simplify right side
    5,712.40x = 27,813,450.48
  5. Step 5: Solve for x
    x = 27,813,450.48/5,712.40
  6. Step 6: Final answer
    x = 4,868.96

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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.