Home / 1,407.36-1,942.94-1,265.52

Finding the Fourth Proportional to 1,407.36, 1,942.94 and 1,265.52

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Solution

The fourth proportional to 1,407.36, 1,942.94 and 1,265.52 is: 1,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.36 : 1,942.94 = 1,265.52 : x
  2. Step 2: Convert to fraction form
    1,407.36/1,942.94 = 1,265.52/x
  3. Step 3: Cross multiply
    1,407.36x = 1,942.94 × 1,265.52
  4. Step 4: Simplify right side
    1,407.36x = 2,458,829.43
  5. Step 5: Solve for x
    x = 2,458,829.43/1,407.36
  6. Step 6: Final answer
    x = 1,747.12

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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.