Home / 2,422.92-3,639.06-2,151.36

Finding the Fourth Proportional to 2,422.92, 3,639.06 and 2,151.36

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Solution

The fourth proportional to 2,422.92, 3,639.06 and 2,151.36 is: 3,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.92 : 3,639.06 = 2,151.36 : x
  2. Step 2: Convert to fraction form
    2,422.92/3,639.06 = 2,151.36/x
  3. Step 3: Cross multiply
    2,422.92x = 3,639.06 × 2,151.36
  4. Step 4: Simplify right side
    2,422.92x = 7,828,928.12
  5. Step 5: Solve for x
    x = 7,828,928.12/2,422.92
  6. Step 6: Final answer
    x = 3,231.20

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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.