Home / 7,324.32-10,988.08-2,129.76

Finding the Fourth Proportional to 7,324.32, 10,988.08 and 2,129.76

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Solution

The fourth proportional to 7,324.32, 10,988.08 and 2,129.76 is: 3,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.32 : 10,988.08 = 2,129.76 : x
  2. Step 2: Convert to fraction form
    7,324.32/10,988.08 = 2,129.76/x
  3. Step 3: Cross multiply
    7,324.32x = 10,988.08 × 2,129.76
  4. Step 4: Simplify right side
    7,324.32x = 23,401,973.26
  5. Step 5: Solve for x
    x = 23,401,973.26/7,324.32
  6. Step 6: Final answer
    x = 3,195.11

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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.