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Finding the Fourth Proportional to 3,060.05, 4,589.44 and 868.19

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Solution

The fourth proportional to 3,060.05, 4,589.44 and 868.19 is: 1,302.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.05 : 4,589.44 = 868.19 : x
  2. Step 2: Convert to fraction form
    3,060.05/4,589.44 = 868.19/x
  3. Step 3: Cross multiply
    3,060.05x = 4,589.44 × 868.19
  4. Step 4: Simplify right side
    3,060.05x = 3,984,515.22
  5. Step 5: Solve for x
    x = 3,984,515.22/3,060.05
  6. Step 6: Final answer
    x = 1,302.11

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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.