Home / 1,213.16-1,817.10-951.80

Finding the Fourth Proportional to 1,213.16, 1,817.10 and 951.80

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Solution

The fourth proportional to 1,213.16, 1,817.10 and 951.80 is: 1,425.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.16 : 1,817.10 = 951.80 : x
  2. Step 2: Convert to fraction form
    1,213.16/1,817.10 = 951.80/x
  3. Step 3: Cross multiply
    1,213.16x = 1,817.10 × 951.80
  4. Step 4: Simplify right side
    1,213.16x = 1,729,515.78
  5. Step 5: Solve for x
    x = 1,729,515.78/1,213.16
  6. Step 6: Final answer
    x = 1,425.63

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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.