Home / 2,501.18-3,751.92-857.49

Finding the Fourth Proportional to 2,501.18, 3,751.92 and 857.49

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Solution

The fourth proportional to 2,501.18, 3,751.92 and 857.49 is: 1,286.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,501.18 : 3,751.92 = 857.49 : x
  2. Step 2: Convert to fraction form
    2,501.18/3,751.92 = 857.49/x
  3. Step 3: Cross multiply
    2,501.18x = 3,751.92 × 857.49
  4. Step 4: Simplify right side
    2,501.18x = 3,217,219.81
  5. Step 5: Solve for x
    x = 3,217,219.81/2,501.18
  6. Step 6: Final answer
    x = 1,286.28

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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.