Home / 5,382.61-8,073.30-1,872.02

Finding the Fourth Proportional to 5,382.61, 8,073.30 and 1,872.02

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Solution

The fourth proportional to 5,382.61, 8,073.30 and 1,872.02 is: 2,807.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.61 : 8,073.30 = 1,872.02 : x
  2. Step 2: Convert to fraction form
    5,382.61/8,073.30 = 1,872.02/x
  3. Step 3: Cross multiply
    5,382.61x = 8,073.30 × 1,872.02
  4. Step 4: Simplify right side
    5,382.61x = 15,113,379.07
  5. Step 5: Solve for x
    x = 15,113,379.07/5,382.61
  6. Step 6: Final answer
    x = 2,807.82

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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.