Home / 1,479.91-2,042.98-1,040.13

Finding the Fourth Proportional to 1,479.91, 2,042.98 and 1,040.13

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Solution

The fourth proportional to 1,479.91, 2,042.98 and 1,040.13 is: 1,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.91 : 2,042.98 = 1,040.13 : x
  2. Step 2: Convert to fraction form
    1,479.91/2,042.98 = 1,040.13/x
  3. Step 3: Cross multiply
    1,479.91x = 2,042.98 × 1,040.13
  4. Step 4: Simplify right side
    1,479.91x = 2,124,964.79
  5. Step 5: Solve for x
    x = 2,124,964.79/1,479.91
  6. Step 6: Final answer
    x = 1,435.87

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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.