Home / 5,768.16-7,960.07-3,115.57

Finding the Fourth Proportional to 5,768.16, 7,960.07 and 3,115.57

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Solution

The fourth proportional to 5,768.16, 7,960.07 and 3,115.57 is: 4,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,768.16 : 7,960.07 = 3,115.57 : x
  2. Step 2: Convert to fraction form
    5,768.16/7,960.07 = 3,115.57/x
  3. Step 3: Cross multiply
    5,768.16x = 7,960.07 × 3,115.57
  4. Step 4: Simplify right side
    5,768.16x = 24,800,119.81
  5. Step 5: Solve for x
    x = 24,800,119.81/5,768.16
  6. Step 6: Final answer
    x = 4,299.49

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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.