Home / 5,187.15-7,747.85-3,725.55

Finding the Fourth Proportional to 5,187.15, 7,747.85 and 3,725.55

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Solution

The fourth proportional to 5,187.15, 7,747.85 and 3,725.55 is: 5,564.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.15 : 7,747.85 = 3,725.55 : x
  2. Step 2: Convert to fraction form
    5,187.15/7,747.85 = 3,725.55/x
  3. Step 3: Cross multiply
    5,187.15x = 7,747.85 × 3,725.55
  4. Step 4: Simplify right side
    5,187.15x = 28,865,011.88
  5. Step 5: Solve for x
    x = 28,865,011.88/5,187.15
  6. Step 6: Final answer
    x = 5,564.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.