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Finding the Fourth Proportional to 1,134.50, 1,702.26 and 673.18

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Solution

The fourth proportional to 1,134.50, 1,702.26 and 673.18 is: 1,010.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.50 : 1,702.26 = 673.18 : x
  2. Step 2: Convert to fraction form
    1,134.50/1,702.26 = 673.18/x
  3. Step 3: Cross multiply
    1,134.50x = 1,702.26 × 673.18
  4. Step 4: Simplify right side
    1,134.50x = 1,145,927.39
  5. Step 5: Solve for x
    x = 1,145,927.39/1,134.50
  6. Step 6: Final answer
    x = 1,010.07

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Double scale
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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.