Home / 2,986.30-4,479.45-1,254.52

Finding the Fourth Proportional to 2,986.30, 4,479.45 and 1,254.52

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Solution

The fourth proportional to 2,986.30, 4,479.45 and 1,254.52 is: 1,881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.30 : 4,479.45 = 1,254.52 : x
  2. Step 2: Convert to fraction form
    2,986.30/4,479.45 = 1,254.52/x
  3. Step 3: Cross multiply
    2,986.30x = 4,479.45 × 1,254.52
  4. Step 4: Simplify right side
    2,986.30x = 5,619,559.61
  5. Step 5: Solve for x
    x = 5,619,559.61/2,986.30
  6. Step 6: Final answer
    x = 1,881.78

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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.