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Finding the Fourth Proportional to 3,049.25, 4,573.46 and 858.16

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Solution

The fourth proportional to 3,049.25, 4,573.46 and 858.16 is: 1,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.25 : 4,573.46 = 858.16 : x
  2. Step 2: Convert to fraction form
    3,049.25/4,573.46 = 858.16/x
  3. Step 3: Cross multiply
    3,049.25x = 4,573.46 × 858.16
  4. Step 4: Simplify right side
    3,049.25x = 3,924,768.30
  5. Step 5: Solve for x
    x = 3,924,768.30/3,049.25
  6. Step 6: Final answer
    x = 1,287.13

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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.