Home / 5,187.62-7,160.45-4,487

Finding the Fourth Proportional to 5,187.62, 7,160.45 and 4,487

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Solution

The fourth proportional to 5,187.62, 7,160.45 and 4,487 is: 6,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.62 : 7,160.45 = 4,487 : x
  2. Step 2: Convert to fraction form
    5,187.62/7,160.45 = 4,487/x
  3. Step 3: Cross multiply
    5,187.62x = 7,160.45 × 4,487
  4. Step 4: Simplify right side
    5,187.62x = 32,128,939.15
  5. Step 5: Solve for x
    x = 32,128,939.15/5,187.62
  6. Step 6: Final answer
    x = 6,193.39

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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.