Home / 4,179.74-6,275.75-1,990.04

Finding the Fourth Proportional to 4,179.74, 6,275.75 and 1,990.04

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Solution

The fourth proportional to 4,179.74, 6,275.75 and 1,990.04 is: 2,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.74 : 6,275.75 = 1,990.04 : x
  2. Step 2: Convert to fraction form
    4,179.74/6,275.75 = 1,990.04/x
  3. Step 3: Cross multiply
    4,179.74x = 6,275.75 × 1,990.04
  4. Step 4: Simplify right side
    4,179.74x = 12,488,952.20
  5. Step 5: Solve for x
    x = 12,488,952.20/4,179.74
  6. Step 6: Final answer
    x = 2,987.98

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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.