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Finding the Fourth Proportional to 2,501.14, 3,751.77 and 857.65

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Solution

The fourth proportional to 2,501.14, 3,751.77 and 857.65 is: 1,286.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,501.14 : 3,751.77 = 857.65 : x
  2. Step 2: Convert to fraction form
    2,501.14/3,751.77 = 857.65/x
  3. Step 3: Cross multiply
    2,501.14x = 3,751.77 × 857.65
  4. Step 4: Simplify right side
    2,501.14x = 3,217,699.38
  5. Step 5: Solve for x
    x = 3,217,699.38/2,501.14
  6. Step 6: Final answer
    x = 1,286.49

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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.