Home / 1,266.40-1,747.85-1,233.09

Finding the Fourth Proportional to 1,266.40, 1,747.85 and 1,233.09

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Solution

The fourth proportional to 1,266.40, 1,747.85 and 1,233.09 is: 1,701.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.40 : 1,747.85 = 1,233.09 : x
  2. Step 2: Convert to fraction form
    1,266.40/1,747.85 = 1,233.09/x
  3. Step 3: Cross multiply
    1,266.40x = 1,747.85 × 1,233.09
  4. Step 4: Simplify right side
    1,266.40x = 2,155,250.19
  5. Step 5: Solve for x
    x = 2,155,250.19/1,266.40
  6. Step 6: Final answer
    x = 1,701.87

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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.