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Finding the Fourth Proportional to 2,454.87, 3,681.77 and 723.09

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Solution

The fourth proportional to 2,454.87, 3,681.77 and 723.09 is: 1,084.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.87 : 3,681.77 = 723.09 : x
  2. Step 2: Convert to fraction form
    2,454.87/3,681.77 = 723.09/x
  3. Step 3: Cross multiply
    2,454.87x = 3,681.77 × 723.09
  4. Step 4: Simplify right side
    2,454.87x = 2,662,247.45
  5. Step 5: Solve for x
    x = 2,662,247.45/2,454.87
  6. Step 6: Final answer
    x = 1,084.48

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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.