Home / 5,377.50-7,418.16-3,609.72

Finding the Fourth Proportional to 5,377.50, 7,418.16 and 3,609.72

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Solution

The fourth proportional to 5,377.50, 7,418.16 and 3,609.72 is: 4,979.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.50 : 7,418.16 = 3,609.72 : x
  2. Step 2: Convert to fraction form
    5,377.50/7,418.16 = 3,609.72/x
  3. Step 3: Cross multiply
    5,377.50x = 7,418.16 × 3,609.72
  4. Step 4: Simplify right side
    5,377.50x = 26,777,480.52
  5. Step 5: Solve for x
    x = 26,777,480.52/5,377.50
  6. Step 6: Final answer
    x = 4,979.54

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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.