Home / 5,545.70-7,654.35-3,189.20

Finding the Fourth Proportional to 5,545.70, 7,654.35 and 3,189.20

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Solution

The fourth proportional to 5,545.70, 7,654.35 and 3,189.20 is: 4,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,545.70 : 7,654.35 = 3,189.20 : x
  2. Step 2: Convert to fraction form
    5,545.70/7,654.35 = 3,189.20/x
  3. Step 3: Cross multiply
    5,545.70x = 7,654.35 × 3,189.20
  4. Step 4: Simplify right side
    5,545.70x = 24,411,253.02
  5. Step 5: Solve for x
    x = 24,411,253.02/5,545.70
  6. Step 6: Final answer
    x = 4,401.83

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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.