Home / 2,988.90-4,480.92-1,042.47

Finding the Fourth Proportional to 2,988.90, 4,480.92 and 1,042.47

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Solution

The fourth proportional to 2,988.90, 4,480.92 and 1,042.47 is: 1,562.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.90 : 4,480.92 = 1,042.47 : x
  2. Step 2: Convert to fraction form
    2,988.90/4,480.92 = 1,042.47/x
  3. Step 3: Cross multiply
    2,988.90x = 4,480.92 × 1,042.47
  4. Step 4: Simplify right side
    2,988.90x = 4,671,224.67
  5. Step 5: Solve for x
    x = 4,671,224.67/2,988.90
  6. Step 6: Final answer
    x = 1,562.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.