Home / 6,349.20-8,759.85-4,112.79

Finding the Fourth Proportional to 6,349.20, 8,759.85 and 4,112.79

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Solution

The fourth proportional to 6,349.20, 8,759.85 and 4,112.79 is: 5,674.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.20 : 8,759.85 = 4,112.79 : x
  2. Step 2: Convert to fraction form
    6,349.20/8,759.85 = 4,112.79/x
  3. Step 3: Cross multiply
    6,349.20x = 8,759.85 × 4,112.79
  4. Step 4: Simplify right side
    6,349.20x = 36,027,423.48
  5. Step 5: Solve for x
    x = 36,027,423.48/6,349.20
  6. Step 6: Final answer
    x = 5,674.32

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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.