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Finding the Fourth Proportional to 3,146.18, 4,719.52 and 837.38

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Solution

The fourth proportional to 3,146.18, 4,719.52 and 837.38 is: 1,256.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.18 : 4,719.52 = 837.38 : x
  2. Step 2: Convert to fraction form
    3,146.18/4,719.52 = 837.38/x
  3. Step 3: Cross multiply
    3,146.18x = 4,719.52 × 837.38
  4. Step 4: Simplify right side
    3,146.18x = 3,952,031.66
  5. Step 5: Solve for x
    x = 3,952,031.66/3,146.18
  6. Step 6: Final answer
    x = 1,256.14

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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.