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Finding the Fourth Proportional to 1,626.75, 2,438.64 and 585.90

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Solution

The fourth proportional to 1,626.75, 2,438.64 and 585.90 is: 878.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.75 : 2,438.64 = 585.90 : x
  2. Step 2: Convert to fraction form
    1,626.75/2,438.64 = 585.90/x
  3. Step 3: Cross multiply
    1,626.75x = 2,438.64 × 585.90
  4. Step 4: Simplify right side
    1,626.75x = 1,428,799.18
  5. Step 5: Solve for x
    x = 1,428,799.18/1,626.75
  6. Step 6: Final answer
    x = 878.32

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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.