Home / 5,115.20-7,058.78-2,846.52

Finding the Fourth Proportional to 5,115.20, 7,058.78 and 2,846.52

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Solution

The fourth proportional to 5,115.20, 7,058.78 and 2,846.52 is: 3,928.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.20 : 7,058.78 = 2,846.52 : x
  2. Step 2: Convert to fraction form
    5,115.20/7,058.78 = 2,846.52/x
  3. Step 3: Cross multiply
    5,115.20x = 7,058.78 × 2,846.52
  4. Step 4: Simplify right side
    5,115.20x = 20,092,958.45
  5. Step 5: Solve for x
    x = 20,092,958.45/5,115.20
  6. Step 6: Final answer
    x = 3,928.09

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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.