Home / 1,479.76-2,042.64-1,007.44

Finding the Fourth Proportional to 1,479.76, 2,042.64 and 1,007.44

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Solution

The fourth proportional to 1,479.76, 2,042.64 and 1,007.44 is: 1,390.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.76 : 2,042.64 = 1,007.44 : x
  2. Step 2: Convert to fraction form
    1,479.76/2,042.64 = 1,007.44/x
  3. Step 3: Cross multiply
    1,479.76x = 2,042.64 × 1,007.44
  4. Step 4: Simplify right side
    1,479.76x = 2,057,837.24
  5. Step 5: Solve for x
    x = 2,057,837.24/1,479.76
  6. Step 6: Final answer
    x = 1,390.66

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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.