Home / 4,288.88-6,428.19-2,209.88

Finding the Fourth Proportional to 4,288.88, 6,428.19 and 2,209.88

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Solution

The fourth proportional to 4,288.88, 6,428.19 and 2,209.88 is: 3,312.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.88 : 6,428.19 = 2,209.88 : x
  2. Step 2: Convert to fraction form
    4,288.88/6,428.19 = 2,209.88/x
  3. Step 3: Cross multiply
    4,288.88x = 6,428.19 × 2,209.88
  4. Step 4: Simplify right side
    4,288.88x = 14,205,528.52
  5. Step 5: Solve for x
    x = 14,205,528.52/4,288.88
  6. Step 6: Final answer
    x = 3,312.18

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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.