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Finding the Fourth Proportional to 1,902.67, 2,626.02 and 1,116.70

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Solution

The fourth proportional to 1,902.67, 2,626.02 and 1,116.70 is: 1,541.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.67 : 2,626.02 = 1,116.70 : x
  2. Step 2: Convert to fraction form
    1,902.67/2,626.02 = 1,116.70/x
  3. Step 3: Cross multiply
    1,902.67x = 2,626.02 × 1,116.70
  4. Step 4: Simplify right side
    1,902.67x = 2,932,469.97
  5. Step 5: Solve for x
    x = 2,932,469.97/1,902.67
  6. Step 6: Final answer
    x = 1,541.24

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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.