Home / 2,209.04-3,312.66-959.72

Finding the Fourth Proportional to 2,209.04, 3,312.66 and 959.72

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Solution

The fourth proportional to 2,209.04, 3,312.66 and 959.72 is: 1,439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.04 : 3,312.66 = 959.72 : x
  2. Step 2: Convert to fraction form
    2,209.04/3,312.66 = 959.72/x
  3. Step 3: Cross multiply
    2,209.04x = 3,312.66 × 959.72
  4. Step 4: Simplify right side
    2,209.04x = 3,179,226.06
  5. Step 5: Solve for x
    x = 3,179,226.06/2,209.04
  6. Step 6: Final answer
    x = 1,439.19

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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.