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Finding the Fourth Proportional to 951.48, 1,313.82 and 703.08

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Solution

The fourth proportional to 951.48, 1,313.82 and 703.08 is: 970.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.48 : 1,313.82 = 703.08 : x
  2. Step 2: Convert to fraction form
    951.48/1,313.82 = 703.08/x
  3. Step 3: Cross multiply
    951.48x = 1,313.82 × 703.08
  4. Step 4: Simplify right side
    951.48x = 923,720.57
  5. Step 5: Solve for x
    x = 923,720.57/951.48
  6. Step 6: Final answer
    x = 970.82

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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.