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Finding the Fourth Proportional to 2,702.92, 4,054.35 and 854.03

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Solution

The fourth proportional to 2,702.92, 4,054.35 and 854.03 is: 1,281.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.92 : 4,054.35 = 854.03 : x
  2. Step 2: Convert to fraction form
    2,702.92/4,054.35 = 854.03/x
  3. Step 3: Cross multiply
    2,702.92x = 4,054.35 × 854.03
  4. Step 4: Simplify right side
    2,702.92x = 3,462,552.72
  5. Step 5: Solve for x
    x = 3,462,552.72/2,702.92
  6. Step 6: Final answer
    x = 1,281.04

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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.