Home / 4,127.64-6,178.08-3,031.80

Finding the Fourth Proportional to 4,127.64, 6,178.08 and 3,031.80

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Solution

The fourth proportional to 4,127.64, 6,178.08 and 3,031.80 is: 4,537.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.64 : 6,178.08 = 3,031.80 : x
  2. Step 2: Convert to fraction form
    4,127.64/6,178.08 = 3,031.80/x
  3. Step 3: Cross multiply
    4,127.64x = 6,178.08 × 3,031.80
  4. Step 4: Simplify right side
    4,127.64x = 18,730,702.94
  5. Step 5: Solve for x
    x = 18,730,702.94/4,127.64
  6. Step 6: Final answer
    x = 4,537.87

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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.