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Finding the Fourth Proportional to 3,049.28, 4,573.93 and 858.01

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Solution

The fourth proportional to 3,049.28, 4,573.93 and 858.01 is: 1,287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.28 : 4,573.93 = 858.01 : x
  2. Step 2: Convert to fraction form
    3,049.28/4,573.93 = 858.01/x
  3. Step 3: Cross multiply
    3,049.28x = 4,573.93 × 858.01
  4. Step 4: Simplify right side
    3,049.28x = 3,924,473.39
  5. Step 5: Solve for x
    x = 3,924,473.39/3,049.28
  6. Step 6: Final answer
    x = 1,287.02

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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.