Home / 5,241.05-7,861.51-1,545.78

Finding the Fourth Proportional to 5,241.05, 7,861.51 and 1,545.78

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Solution

The fourth proportional to 5,241.05, 7,861.51 and 1,545.78 is: 2,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.05 : 7,861.51 = 1,545.78 : x
  2. Step 2: Convert to fraction form
    5,241.05/7,861.51 = 1,545.78/x
  3. Step 3: Cross multiply
    5,241.05x = 7,861.51 × 1,545.78
  4. Step 4: Simplify right side
    5,241.05x = 12,152,187.65
  5. Step 5: Solve for x
    x = 12,152,187.65/5,241.05
  6. Step 6: Final answer
    x = 2,318.65

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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.