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Finding the Fourth Proportional to 1,344.60, 1,850.49 and 1,137.50

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Solution

The fourth proportional to 1,344.60, 1,850.49 and 1,137.50 is: 1,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.60 : 1,850.49 = 1,137.50 : x
  2. Step 2: Convert to fraction form
    1,344.60/1,850.49 = 1,137.50/x
  3. Step 3: Cross multiply
    1,344.60x = 1,850.49 × 1,137.50
  4. Step 4: Simplify right side
    1,344.60x = 2,104,936.64
  5. Step 5: Solve for x
    x = 2,104,936.64/1,344.60
  6. Step 6: Final answer
    x = 1,565.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.