Home / 7,325.29-10,988.07-2,131.30

Finding the Fourth Proportional to 7,325.29, 10,988.07 and 2,131.30

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Solution

The fourth proportional to 7,325.29, 10,988.07 and 2,131.30 is: 3,196.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.29 : 10,988.07 = 2,131.30 : x
  2. Step 2: Convert to fraction form
    7,325.29/10,988.07 = 2,131.30/x
  3. Step 3: Cross multiply
    7,325.29x = 10,988.07 × 2,131.30
  4. Step 4: Simplify right side
    7,325.29x = 23,418,873.59
  5. Step 5: Solve for x
    x = 23,418,873.59/7,325.29
  6. Step 6: Final answer
    x = 3,196.99

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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.