Home / 6,429.20-8,876.16-4,194.95

Finding the Fourth Proportional to 6,429.20, 8,876.16 and 4,194.95

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Solution

The fourth proportional to 6,429.20, 8,876.16 and 4,194.95 is: 5,791.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.20 : 8,876.16 = 4,194.95 : x
  2. Step 2: Convert to fraction form
    6,429.20/8,876.16 = 4,194.95/x
  3. Step 3: Cross multiply
    6,429.20x = 8,876.16 × 4,194.95
  4. Step 4: Simplify right side
    6,429.20x = 37,235,003.01
  5. Step 5: Solve for x
    x = 37,235,003.01/6,429.20
  6. Step 6: Final answer
    x = 5,791.55

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1.5x scale

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.