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Finding the Fourth Proportional to 1,902.76, 2,854.12 and 534.76

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Solution

The fourth proportional to 1,902.76, 2,854.12 and 534.76 is: 802.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.76 : 2,854.12 = 534.76 : x
  2. Step 2: Convert to fraction form
    1,902.76/2,854.12 = 534.76/x
  3. Step 3: Cross multiply
    1,902.76x = 2,854.12 × 534.76
  4. Step 4: Simplify right side
    1,902.76x = 1,526,269.21
  5. Step 5: Solve for x
    x = 1,526,269.21/1,902.76
  6. Step 6: Final answer
    x = 802.13

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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.