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Finding the Fourth Proportional to 2,232, 3,347.37 and 931.86

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Solution

The fourth proportional to 2,232, 3,347.37 and 931.86 is: 1,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232 : 3,347.37 = 931.86 : x
  2. Step 2: Convert to fraction form
    2,232/3,347.37 = 931.86/x
  3. Step 3: Cross multiply
    2,232x = 3,347.37 × 931.86
  4. Step 4: Simplify right side
    2,232x = 3,119,280.21
  5. Step 5: Solve for x
    x = 3,119,280.21/2,232
  6. Step 6: Final answer
    x = 1,397.53

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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.