Home / 6,619.44-9,932.40-3,987.66

Finding the Fourth Proportional to 6,619.44, 9,932.40 and 3,987.66

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Solution

The fourth proportional to 6,619.44, 9,932.40 and 3,987.66 is: 5,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.44 : 9,932.40 = 3,987.66 : x
  2. Step 2: Convert to fraction form
    6,619.44/9,932.40 = 3,987.66/x
  3. Step 3: Cross multiply
    6,619.44x = 9,932.40 × 3,987.66
  4. Step 4: Simplify right side
    6,619.44x = 39,607,034.18
  5. Step 5: Solve for x
    x = 39,607,034.18/6,619.44
  6. Step 6: Final answer
    x = 5,983.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.