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Finding the Fourth Proportional to 951.70, 1,317.73 and 903.10

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Solution

The fourth proportional to 951.70, 1,317.73 and 903.10 is: 1,250.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.70 : 1,317.73 = 903.10 : x
  2. Step 2: Convert to fraction form
    951.70/1,317.73 = 903.10/x
  3. Step 3: Cross multiply
    951.70x = 1,317.73 × 903.10
  4. Step 4: Simplify right side
    951.70x = 1,190,041.96
  5. Step 5: Solve for x
    x = 1,190,041.96/951.70
  6. Step 6: Final answer
    x = 1,250.44

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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.