Home / 5,931.38-8,185.44-3,839.15

Finding the Fourth Proportional to 5,931.38, 8,185.44 and 3,839.15

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Solution

The fourth proportional to 5,931.38, 8,185.44 and 3,839.15 is: 5,298.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,931.38 : 8,185.44 = 3,839.15 : x
  2. Step 2: Convert to fraction form
    5,931.38/8,185.44 = 3,839.15/x
  3. Step 3: Cross multiply
    5,931.38x = 8,185.44 × 3,839.15
  4. Step 4: Simplify right side
    5,931.38x = 31,425,091.05
  5. Step 5: Solve for x
    x = 31,425,091.05/5,931.38
  6. Step 6: Final answer
    x = 5,298.11

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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.