Home / 3,238.30-4,465.92-2,118.88

Finding the Fourth Proportional to 3,238.30, 4,465.92 and 2,118.88

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Solution

The fourth proportional to 3,238.30, 4,465.92 and 2,118.88 is: 2,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.30 : 4,465.92 = 2,118.88 : x
  2. Step 2: Convert to fraction form
    3,238.30/4,465.92 = 2,118.88/x
  3. Step 3: Cross multiply
    3,238.30x = 4,465.92 × 2,118.88
  4. Step 4: Simplify right side
    3,238.30x = 9,462,748.57
  5. Step 5: Solve for x
    x = 9,462,748.57/3,238.30
  6. Step 6: Final answer
    x = 2,922.13

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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.