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Finding the Fourth Proportional to 2,506.23, 3,759.38 and 862.79

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Solution

The fourth proportional to 2,506.23, 3,759.38 and 862.79 is: 1,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,506.23 : 3,759.38 = 862.79 : x
  2. Step 2: Convert to fraction form
    2,506.23/3,759.38 = 862.79/x
  3. Step 3: Cross multiply
    2,506.23x = 3,759.38 × 862.79
  4. Step 4: Simplify right side
    2,506.23x = 3,243,560.55
  5. Step 5: Solve for x
    x = 3,243,560.55/2,506.23
  6. Step 6: Final answer
    x = 1,294.20

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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.