Home / 6,619.95-9,134.46-3,966.75

Finding the Fourth Proportional to 6,619.95, 9,134.46 and 3,966.75

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Solution

The fourth proportional to 6,619.95, 9,134.46 and 3,966.75 is: 5,473.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.95 : 9,134.46 = 3,966.75 : x
  2. Step 2: Convert to fraction form
    6,619.95/9,134.46 = 3,966.75/x
  3. Step 3: Cross multiply
    6,619.95x = 9,134.46 × 3,966.75
  4. Step 4: Simplify right side
    6,619.95x = 36,234,119.21
  5. Step 5: Solve for x
    x = 36,234,119.21/6,619.95
  6. Step 6: Final answer
    x = 5,473.47

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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.