Home / 6,115.50-8,439.39-3,321

Finding the Fourth Proportional to 6,115.50, 8,439.39 and 3,321

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Solution

The fourth proportional to 6,115.50, 8,439.39 and 3,321 is: 4,582.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.50 : 8,439.39 = 3,321 : x
  2. Step 2: Convert to fraction form
    6,115.50/8,439.39 = 3,321/x
  3. Step 3: Cross multiply
    6,115.50x = 8,439.39 × 3,321
  4. Step 4: Simplify right side
    6,115.50x = 28,027,214.19
  5. Step 5: Solve for x
    x = 28,027,214.19/6,115.50
  6. Step 6: Final answer
    x = 4,582.98

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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.