Home / 7,382.74-11,072.20-2,187.40

Finding the Fourth Proportional to 7,382.74, 11,072.20 and 2,187.40

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Solution

The fourth proportional to 7,382.74, 11,072.20 and 2,187.40 is: 3,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.74 : 11,072.20 = 2,187.40 : x
  2. Step 2: Convert to fraction form
    7,382.74/11,072.20 = 2,187.40/x
  3. Step 3: Cross multiply
    7,382.74x = 11,072.20 × 2,187.40
  4. Step 4: Simplify right side
    7,382.74x = 24,219,330.28
  5. Step 5: Solve for x
    x = 24,219,330.28/7,382.74
  6. Step 6: Final answer
    x = 3,280.53

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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.