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Finding the Fourth Proportional to 2,302.65, 3,454.02 and 1,209.15

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Solution

The fourth proportional to 2,302.65, 3,454.02 and 1,209.15 is: 1,813.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,302.65 : 3,454.02 = 1,209.15 : x
  2. Step 2: Convert to fraction form
    2,302.65/3,454.02 = 1,209.15/x
  3. Step 3: Cross multiply
    2,302.65x = 3,454.02 × 1,209.15
  4. Step 4: Simplify right side
    2,302.65x = 4,176,434.60
  5. Step 5: Solve for x
    x = 4,176,434.60/2,302.65
  6. Step 6: Final answer
    x = 1,813.75

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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.