Home / 6,115.44-8,439.30-3,320.92

Finding the Fourth Proportional to 6,115.44, 8,439.30 and 3,320.92

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Solution

The fourth proportional to 6,115.44, 8,439.30 and 3,320.92 is: 4,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.44 : 8,439.30 = 3,320.92 : x
  2. Step 2: Convert to fraction form
    6,115.44/8,439.30 = 3,320.92/x
  3. Step 3: Cross multiply
    6,115.44x = 8,439.30 × 3,320.92
  4. Step 4: Simplify right side
    6,115.44x = 28,026,240.16
  5. Step 5: Solve for x
    x = 28,026,240.16/6,115.44
  6. Step 6: Final answer
    x = 4,582.87

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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.