Home / 5,382.56-8,069.21-1,872.11

Finding the Fourth Proportional to 5,382.56, 8,069.21 and 1,872.11

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Solution

The fourth proportional to 5,382.56, 8,069.21 and 1,872.11 is: 2,806.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.56 : 8,069.21 = 1,872.11 : x
  2. Step 2: Convert to fraction form
    5,382.56/8,069.21 = 1,872.11/x
  3. Step 3: Cross multiply
    5,382.56x = 8,069.21 × 1,872.11
  4. Step 4: Simplify right side
    5,382.56x = 15,106,473.59
  5. Step 5: Solve for x
    x = 15,106,473.59/5,382.56
  6. Step 6: Final answer
    x = 2,806.56

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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.