Home / 7,325.23-10,988.65-2,131.95

Finding the Fourth Proportional to 7,325.23, 10,988.65 and 2,131.95

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Solution

The fourth proportional to 7,325.23, 10,988.65 and 2,131.95 is: 3,198.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.23 : 10,988.65 = 2,131.95 : x
  2. Step 2: Convert to fraction form
    7,325.23/10,988.65 = 2,131.95/x
  3. Step 3: Cross multiply
    7,325.23x = 10,988.65 × 2,131.95
  4. Step 4: Simplify right side
    7,325.23x = 23,427,241.71
  5. Step 5: Solve for x
    x = 23,427,241.71/7,325.23
  6. Step 6: Final answer
    x = 3,198.16

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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.