Home / 6,115.44-8,439.40-3,320.94

Finding the Fourth Proportional to 6,115.44, 8,439.40 and 3,320.94

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Solution

The fourth proportional to 6,115.44, 8,439.40 and 3,320.94 is: 4,582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.44 : 8,439.40 = 3,320.94 : x
  2. Step 2: Convert to fraction form
    6,115.44/8,439.40 = 3,320.94/x
  3. Step 3: Cross multiply
    6,115.44x = 8,439.40 × 3,320.94
  4. Step 4: Simplify right side
    6,115.44x = 28,026,741.04
  5. Step 5: Solve for x
    x = 28,026,741.04/6,115.44
  6. Step 6: Final answer
    x = 4,582.95

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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.