Home / 6,619.50-9,134.58-3,966.39

Finding the Fourth Proportional to 6,619.50, 9,134.58 and 3,966.39

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Solution

The fourth proportional to 6,619.50, 9,134.58 and 3,966.39 is: 5,473.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.50 : 9,134.58 = 3,966.39 : x
  2. Step 2: Convert to fraction form
    6,619.50/9,134.58 = 3,966.39/x
  3. Step 3: Cross multiply
    6,619.50x = 9,134.58 × 3,966.39
  4. Step 4: Simplify right side
    6,619.50x = 36,231,306.77
  5. Step 5: Solve for x
    x = 36,231,306.77/6,619.50
  6. Step 6: Final answer
    x = 5,473.42

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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.