Home / 3,545.40-5,318.10-3,113.40

Finding the Fourth Proportional to 3,545.40, 5,318.10 and 3,113.40

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Solution

The fourth proportional to 3,545.40, 5,318.10 and 3,113.40 is: 4,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.40 : 5,318.10 = 3,113.40 : x
  2. Step 2: Convert to fraction form
    3,545.40/5,318.10 = 3,113.40/x
  3. Step 3: Cross multiply
    3,545.40x = 5,318.10 × 3,113.40
  4. Step 4: Simplify right side
    3,545.40x = 16,557,372.54
  5. Step 5: Solve for x
    x = 16,557,372.54/3,545.40
  6. Step 6: Final answer
    x = 4,670.10

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Similar ratio
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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.