Home / 4,127.78-6,177.31-3,887.89

Finding the Fourth Proportional to 4,127.78, 6,177.31 and 3,887.89

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Solution

The fourth proportional to 4,127.78, 6,177.31 and 3,887.89 is: 5,818.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.78 : 6,177.31 = 3,887.89 : x
  2. Step 2: Convert to fraction form
    4,127.78/6,177.31 = 3,887.89/x
  3. Step 3: Cross multiply
    4,127.78x = 6,177.31 × 3,887.89
  4. Step 4: Simplify right side
    4,127.78x = 24,016,701.78
  5. Step 5: Solve for x
    x = 24,016,701.78/4,127.78
  6. Step 6: Final answer
    x = 5,818.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.