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Finding the Fourth Proportional to 3,146.45, 4,719.68 and 837.95

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Solution

The fourth proportional to 3,146.45, 4,719.68 and 837.95 is: 1,256.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.45 : 4,719.68 = 837.95 : x
  2. Step 2: Convert to fraction form
    3,146.45/4,719.68 = 837.95/x
  3. Step 3: Cross multiply
    3,146.45x = 4,719.68 × 837.95
  4. Step 4: Simplify right side
    3,146.45x = 3,954,855.86
  5. Step 5: Solve for x
    x = 3,954,855.86/3,146.45
  6. Step 6: Final answer
    x = 1,256.93

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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.