Home / 5,768.14-7,960.03-3,115.55

Finding the Fourth Proportional to 5,768.14, 7,960.03 and 3,115.55

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Solution

The fourth proportional to 5,768.14, 7,960.03 and 3,115.55 is: 4,299.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,768.14 : 7,960.03 = 3,115.55 : x
  2. Step 2: Convert to fraction form
    5,768.14/7,960.03 = 3,115.55/x
  3. Step 3: Cross multiply
    5,768.14x = 7,960.03 × 3,115.55
  4. Step 4: Simplify right side
    5,768.14x = 24,799,871.47
  5. Step 5: Solve for x
    x = 24,799,871.47/5,768.14
  6. Step 6: Final answer
    x = 4,299.46

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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.