Home / 5,177.78-7,144.17-4,341.86

Finding the Fourth Proportional to 5,177.78, 7,144.17 and 4,341.86

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Solution

The fourth proportional to 5,177.78, 7,144.17 and 4,341.86 is: 5,990.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.78 : 7,144.17 = 4,341.86 : x
  2. Step 2: Convert to fraction form
    5,177.78/7,144.17 = 4,341.86/x
  3. Step 3: Cross multiply
    5,177.78x = 7,144.17 × 4,341.86
  4. Step 4: Simplify right side
    5,177.78x = 31,018,985.96
  5. Step 5: Solve for x
    x = 31,018,985.96/5,177.78
  6. Step 6: Final answer
    x = 5,990.79

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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.