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Finding the Fourth Proportional to 3,679.34, 5,515.90 and 1,597.78

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Solution

The fourth proportional to 3,679.34, 5,515.90 and 1,597.78 is: 2,395.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.34 : 5,515.90 = 1,597.78 : x
  2. Step 2: Convert to fraction form
    3,679.34/5,515.90 = 1,597.78/x
  3. Step 3: Cross multiply
    3,679.34x = 5,515.90 × 1,597.78
  4. Step 4: Simplify right side
    3,679.34x = 8,813,159.13
  5. Step 5: Solve for x
    x = 8,813,159.13/3,679.34
  6. Step 6: Final answer
    x = 2,395.31

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1.5x scale

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.