Home / 1,266.78-1,737.60-1,246.14

Finding the Fourth Proportional to 1,266.78, 1,737.60 and 1,246.14

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Solution

The fourth proportional to 1,266.78, 1,737.60 and 1,246.14 is: 1,709.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.78 : 1,737.60 = 1,246.14 : x
  2. Step 2: Convert to fraction form
    1,266.78/1,737.60 = 1,246.14/x
  3. Step 3: Cross multiply
    1,266.78x = 1,737.60 × 1,246.14
  4. Step 4: Simplify right side
    1,266.78x = 2,165,292.86
  5. Step 5: Solve for x
    x = 2,165,292.86/1,266.78
  6. Step 6: Final answer
    x = 1,709.29

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.