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Finding the Fourth Proportional to 5,807.15, 8,013.78 and 3,154.54

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Solution

The fourth proportional to 5,807.15, 8,013.78 and 3,154.54 is: 4,353.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.15 : 8,013.78 = 3,154.54 : x
  2. Step 2: Convert to fraction form
    5,807.15/8,013.78 = 3,154.54/x
  3. Step 3: Cross multiply
    5,807.15x = 8,013.78 × 3,154.54
  4. Step 4: Simplify right side
    5,807.15x = 25,279,789.56
  5. Step 5: Solve for x
    x = 25,279,789.56/5,807.15
  6. Step 6: Final answer
    x = 4,353.22

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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.