Home / 3,756.24-5,178.66-3,081.57

Finding the Fourth Proportional to 3,756.24, 5,178.66 and 3,081.57

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Solution

The fourth proportional to 3,756.24, 5,178.66 and 3,081.57 is: 4,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.24 : 5,178.66 = 3,081.57 : x
  2. Step 2: Convert to fraction form
    3,756.24/5,178.66 = 3,081.57/x
  3. Step 3: Cross multiply
    3,756.24x = 5,178.66 × 3,081.57
  4. Step 4: Simplify right side
    3,756.24x = 15,958,403.30
  5. Step 5: Solve for x
    x = 15,958,403.30/3,756.24
  6. Step 6: Final answer
    x = 4,248.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.