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Finding the Fourth Proportional to 1,625.86, 2,243.87 and 962.88

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Solution

The fourth proportional to 1,625.86, 2,243.87 and 962.88 is: 1,328.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.86 : 2,243.87 = 962.88 : x
  2. Step 2: Convert to fraction form
    1,625.86/2,243.87 = 962.88/x
  3. Step 3: Cross multiply
    1,625.86x = 2,243.87 × 962.88
  4. Step 4: Simplify right side
    1,625.86x = 2,160,577.55
  5. Step 5: Solve for x
    x = 2,160,577.55/1,625.86
  6. Step 6: Final answer
    x = 1,328.88

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1.5x scale

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.