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Finding the Fourth Proportional to 2,714.95, 4,072.95 and 1,154.95

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Solution

The fourth proportional to 2,714.95, 4,072.95 and 1,154.95 is: 1,732.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,714.95 : 4,072.95 = 1,154.95 : x
  2. Step 2: Convert to fraction form
    2,714.95/4,072.95 = 1,154.95/x
  3. Step 3: Cross multiply
    2,714.95x = 4,072.95 × 1,154.95
  4. Step 4: Simplify right side
    2,714.95x = 4,704,053.60
  5. Step 5: Solve for x
    x = 4,704,053.60/2,714.95
  6. Step 6: Final answer
    x = 1,732.65

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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.