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Finding the Fourth Proportional to 2,671.52, 3,688.08 and 1,842.08

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Solution

The fourth proportional to 2,671.52, 3,688.08 and 1,842.08 is: 2,543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.52 : 3,688.08 = 1,842.08 : x
  2. Step 2: Convert to fraction form
    2,671.52/3,688.08 = 1,842.08/x
  3. Step 3: Cross multiply
    2,671.52x = 3,688.08 × 1,842.08
  4. Step 4: Simplify right side
    2,671.52x = 6,793,738.41
  5. Step 5: Solve for x
    x = 6,793,738.41/2,671.52
  6. Step 6: Final answer
    x = 2,543.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.