Home / 7,621.33-11,432.68-2,427.20

Finding the Fourth Proportional to 7,621.33, 11,432.68 and 2,427.20

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Solution

The fourth proportional to 7,621.33, 11,432.68 and 2,427.20 is: 3,641.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.33 : 11,432.68 = 2,427.20 : x
  2. Step 2: Convert to fraction form
    7,621.33/11,432.68 = 2,427.20/x
  3. Step 3: Cross multiply
    7,621.33x = 11,432.68 × 2,427.20
  4. Step 4: Simplify right side
    7,621.33x = 27,749,400.90
  5. Step 5: Solve for x
    x = 27,749,400.90/7,621.33
  6. Step 6: Final answer
    x = 3,641.02

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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.