Home / 5,079.95-7,619.15-1,961.43

Finding the Fourth Proportional to 5,079.95, 7,619.15 and 1,961.43

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Solution

The fourth proportional to 5,079.95, 7,619.15 and 1,961.43 is: 2,941.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.95 : 7,619.15 = 1,961.43 : x
  2. Step 2: Convert to fraction form
    5,079.95/7,619.15 = 1,961.43/x
  3. Step 3: Cross multiply
    5,079.95x = 7,619.15 × 1,961.43
  4. Step 4: Simplify right side
    5,079.95x = 14,944,419.58
  5. Step 5: Solve for x
    x = 14,944,419.58/5,079.95
  6. Step 6: Final answer
    x = 2,941.85

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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.