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Finding the Fourth Proportional to 2,387.88, 3,584.88 and 1,840.44

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Solution

The fourth proportional to 2,387.88, 3,584.88 and 1,840.44 is: 2,763.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.88 : 3,584.88 = 1,840.44 : x
  2. Step 2: Convert to fraction form
    2,387.88/3,584.88 = 1,840.44/x
  3. Step 3: Cross multiply
    2,387.88x = 3,584.88 × 1,840.44
  4. Step 4: Simplify right side
    2,387.88x = 6,597,756.55
  5. Step 5: Solve for x
    x = 6,597,756.55/2,387.88
  6. Step 6: Final answer
    x = 2,763.02

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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.