Home / 3,216.40-4,819.96-2,868.88

Finding the Fourth Proportional to 3,216.40, 4,819.96 and 2,868.88

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Solution

The fourth proportional to 3,216.40, 4,819.96 and 2,868.88 is: 4,299.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.40 : 4,819.96 = 2,868.88 : x
  2. Step 2: Convert to fraction form
    3,216.40/4,819.96 = 2,868.88/x
  3. Step 3: Cross multiply
    3,216.40x = 4,819.96 × 2,868.88
  4. Step 4: Simplify right side
    3,216.40x = 13,827,886.84
  5. Step 5: Solve for x
    x = 13,827,886.84/3,216.40
  6. Step 6: Final answer
    x = 4,299.18

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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.