Home / 4,937.72-7,379.27-4,423.78

Finding the Fourth Proportional to 4,937.72, 7,379.27 and 4,423.78

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Solution

The fourth proportional to 4,937.72, 7,379.27 and 4,423.78 is: 6,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,937.72 : 7,379.27 = 4,423.78 : x
  2. Step 2: Convert to fraction form
    4,937.72/7,379.27 = 4,423.78/x
  3. Step 3: Cross multiply
    4,937.72x = 7,379.27 × 4,423.78
  4. Step 4: Simplify right side
    4,937.72x = 32,644,267.04
  5. Step 5: Solve for x
    x = 32,644,267.04/4,937.72
  6. Step 6: Final answer
    x = 6,611.20

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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.