Home / 6,319.60-8,721.84-3,666.44

Finding the Fourth Proportional to 6,319.60, 8,721.84 and 3,666.44

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Solution

The fourth proportional to 6,319.60, 8,721.84 and 3,666.44 is: 5,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.60 : 8,721.84 = 3,666.44 : x
  2. Step 2: Convert to fraction form
    6,319.60/8,721.84 = 3,666.44/x
  3. Step 3: Cross multiply
    6,319.60x = 8,721.84 × 3,666.44
  4. Step 4: Simplify right side
    6,319.60x = 31,978,103.05
  5. Step 5: Solve for x
    x = 31,978,103.05/6,319.60
  6. Step 6: Final answer
    x = 5,060.15

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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.