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Finding the Fourth Proportional to 2,506.64, 3,757.80 and 1,209.02

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Solution

The fourth proportional to 2,506.64, 3,757.80 and 1,209.02 is: 1,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,506.64 : 3,757.80 = 1,209.02 : x
  2. Step 2: Convert to fraction form
    2,506.64/3,757.80 = 1,209.02/x
  3. Step 3: Cross multiply
    2,506.64x = 3,757.80 × 1,209.02
  4. Step 4: Simplify right side
    2,506.64x = 4,543,255.36
  5. Step 5: Solve for x
    x = 4,543,255.36/2,506.64
  6. Step 6: Final answer
    x = 1,812.49

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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.