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Finding the Fourth Proportional to 2,313.47, 3,472.67 and 997.86

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Solution

The fourth proportional to 2,313.47, 3,472.67 and 997.86 is: 1,497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.47 : 3,472.67 = 997.86 : x
  2. Step 2: Convert to fraction form
    2,313.47/3,472.67 = 997.86/x
  3. Step 3: Cross multiply
    2,313.47x = 3,472.67 × 997.86
  4. Step 4: Simplify right side
    2,313.47x = 3,465,233.50
  5. Step 5: Solve for x
    x = 3,465,233.50/2,313.47
  6. Step 6: Final answer
    x = 1,497.85

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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.