Home / 1,407.24-1,939.82-1,034.64

Finding the Fourth Proportional to 1,407.24, 1,939.82 and 1,034.64

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Solution

The fourth proportional to 1,407.24, 1,939.82 and 1,034.64 is: 1,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.24 : 1,939.82 = 1,034.64 : x
  2. Step 2: Convert to fraction form
    1,407.24/1,939.82 = 1,034.64/x
  3. Step 3: Cross multiply
    1,407.24x = 1,939.82 × 1,034.64
  4. Step 4: Simplify right side
    1,407.24x = 2,007,010.19
  5. Step 5: Solve for x
    x = 2,007,010.19/1,407.24
  6. Step 6: Final answer
    x = 1,426.20

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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.