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Finding the Fourth Proportional to 2,501.16, 3,751.02 and 857.70

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Solution

The fourth proportional to 2,501.16, 3,751.02 and 857.70 is: 1,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,501.16 : 3,751.02 = 857.70 : x
  2. Step 2: Convert to fraction form
    2,501.16/3,751.02 = 857.70/x
  3. Step 3: Cross multiply
    2,501.16x = 3,751.02 × 857.70
  4. Step 4: Simplify right side
    2,501.16x = 3,217,249.85
  5. Step 5: Solve for x
    x = 3,217,249.85/2,501.16
  6. Step 6: Final answer
    x = 1,286.30

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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.