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Finding the Fourth Proportional to 1,626.39, 2,436.53 and 803.70

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Solution

The fourth proportional to 1,626.39, 2,436.53 and 803.70 is: 1,204.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.39 : 2,436.53 = 803.70 : x
  2. Step 2: Convert to fraction form
    1,626.39/2,436.53 = 803.70/x
  3. Step 3: Cross multiply
    1,626.39x = 2,436.53 × 803.70
  4. Step 4: Simplify right side
    1,626.39x = 1,958,235.14
  5. Step 5: Solve for x
    x = 1,958,235.14/1,626.39
  6. Step 6: Final answer
    x = 1,204.04

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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.