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Finding the Fourth Proportional to 2,299.21, 3,448.85 and 655.76

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Solution

The fourth proportional to 2,299.21, 3,448.85 and 655.76 is: 983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.21 : 3,448.85 = 655.76 : x
  2. Step 2: Convert to fraction form
    2,299.21/3,448.85 = 655.76/x
  3. Step 3: Cross multiply
    2,299.21x = 3,448.85 × 655.76
  4. Step 4: Simplify right side
    2,299.21x = 2,261,611.41
  5. Step 5: Solve for x
    x = 2,261,611.41/2,299.21
  6. Step 6: Final answer
    x = 983.65

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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.