Home / 3,179.13-4,387.43-1,762.89

Finding the Fourth Proportional to 3,179.13, 4,387.43 and 1,762.89

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Solution

The fourth proportional to 3,179.13, 4,387.43 and 1,762.89 is: 2,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.13 : 4,387.43 = 1,762.89 : x
  2. Step 2: Convert to fraction form
    3,179.13/4,387.43 = 1,762.89/x
  3. Step 3: Cross multiply
    3,179.13x = 4,387.43 × 1,762.89
  4. Step 4: Simplify right side
    3,179.13x = 7,734,547.66
  5. Step 5: Solve for x
    x = 7,734,547.66/3,179.13
  6. Step 6: Final answer
    x = 2,432.91

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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.