Home / 3,215.10-4,440.24-2,469.90

Finding the Fourth Proportional to 3,215.10, 4,440.24 and 2,469.90

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Solution

The fourth proportional to 3,215.10, 4,440.24 and 2,469.90 is: 3,411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.10 : 4,440.24 = 2,469.90 : x
  2. Step 2: Convert to fraction form
    3,215.10/4,440.24 = 2,469.90/x
  3. Step 3: Cross multiply
    3,215.10x = 4,440.24 × 2,469.90
  4. Step 4: Simplify right side
    3,215.10x = 10,966,948.78
  5. Step 5: Solve for x
    x = 10,966,948.78/3,215.10
  6. Step 6: Final answer
    x = 3,411.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.