Home / 7,324.28-10,988.04-2,129.72

Finding the Fourth Proportional to 7,324.28, 10,988.04 and 2,129.72

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Solution

The fourth proportional to 7,324.28, 10,988.04 and 2,129.72 is: 3,195.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.28 : 10,988.04 = 2,129.72 : x
  2. Step 2: Convert to fraction form
    7,324.28/10,988.04 = 2,129.72/x
  3. Step 3: Cross multiply
    7,324.28x = 10,988.04 × 2,129.72
  4. Step 4: Simplify right side
    7,324.28x = 23,401,448.55
  5. Step 5: Solve for x
    x = 23,401,448.55/7,324.28
  6. Step 6: Final answer
    x = 3,195.05

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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.