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Finding the Fourth Proportional to 2,299.68, 3,449.06 and 655.79

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Solution

The fourth proportional to 2,299.68, 3,449.06 and 655.79 is: 983.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.68 : 3,449.06 = 655.79 : x
  2. Step 2: Convert to fraction form
    2,299.68/3,449.06 = 655.79/x
  3. Step 3: Cross multiply
    2,299.68x = 3,449.06 × 655.79
  4. Step 4: Simplify right side
    2,299.68x = 2,261,840.99
  5. Step 5: Solve for x
    x = 2,261,840.99/2,299.68
  6. Step 6: Final answer
    x = 983.55

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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.