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Finding the Fourth Proportional to 2,344.52, 3,235.12 and 1,991.86

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Solution

The fourth proportional to 2,344.52, 3,235.12 and 1,991.86 is: 2,748.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,344.52 : 3,235.12 = 1,991.86 : x
  2. Step 2: Convert to fraction form
    2,344.52/3,235.12 = 1,991.86/x
  3. Step 3: Cross multiply
    2,344.52x = 3,235.12 × 1,991.86
  4. Step 4: Simplify right side
    2,344.52x = 6,443,906.12
  5. Step 5: Solve for x
    x = 6,443,906.12/2,344.52
  6. Step 6: Final answer
    x = 2,748.50

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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.