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Finding the Fourth Proportional to 2,714.76, 4,070.88 and 1,155.96

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Solution

The fourth proportional to 2,714.76, 4,070.88 and 1,155.96 is: 1,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,714.76 : 4,070.88 = 1,155.96 : x
  2. Step 2: Convert to fraction form
    2,714.76/4,070.88 = 1,155.96/x
  3. Step 3: Cross multiply
    2,714.76x = 4,070.88 × 1,155.96
  4. Step 4: Simplify right side
    2,714.76x = 4,705,774.44
  5. Step 5: Solve for x
    x = 4,705,774.44/2,714.76
  6. Step 6: Final answer
    x = 1,733.40

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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.