Home / 6,127.76-9,180.12-3,386

Finding the Fourth Proportional to 6,127.76, 9,180.12 and 3,386

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Solution

The fourth proportional to 6,127.76, 9,180.12 and 3,386 is: 5,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,127.76 : 9,180.12 = 3,386 : x
  2. Step 2: Convert to fraction form
    6,127.76/9,180.12 = 3,386/x
  3. Step 3: Cross multiply
    6,127.76x = 9,180.12 × 3,386
  4. Step 4: Simplify right side
    6,127.76x = 31,083,886.32
  5. Step 5: Solve for x
    x = 31,083,886.32/6,127.76
  6. Step 6: Final answer
    x = 5,072.63

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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.