Home / 3,127.16-4,689.32-1,177.98

Finding the Fourth Proportional to 3,127.16, 4,689.32 and 1,177.98

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Solution

The fourth proportional to 3,127.16, 4,689.32 and 1,177.98 is: 1,766.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.16 : 4,689.32 = 1,177.98 : x
  2. Step 2: Convert to fraction form
    3,127.16/4,689.32 = 1,177.98/x
  3. Step 3: Cross multiply
    3,127.16x = 4,689.32 × 1,177.98
  4. Step 4: Simplify right side
    3,127.16x = 5,523,925.17
  5. Step 5: Solve for x
    x = 5,523,925.17/3,127.16
  6. Step 6: Final answer
    x = 1,766.44

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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.