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Finding the Fourth Proportional to 3,057.27, 4,585.91 and 866.00

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Solution

The fourth proportional to 3,057.27, 4,585.91 and 866.00 is: 1,298.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.27 : 4,585.91 = 866.00 : x
  2. Step 2: Convert to fraction form
    3,057.27/4,585.91 = 866.00/x
  3. Step 3: Cross multiply
    3,057.27x = 4,585.91 × 866.00
  4. Step 4: Simplify right side
    3,057.27x = 3,971,370.80
  5. Step 5: Solve for x
    x = 3,971,370.80/3,057.27
  6. Step 6: Final answer
    x = 1,298.99

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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.