Home / 5,122.62-7,069.55-2,854.32

Finding the Fourth Proportional to 5,122.62, 7,069.55 and 2,854.32

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Solution

The fourth proportional to 5,122.62, 7,069.55 and 2,854.32 is: 3,939.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.62 : 7,069.55 = 2,854.32 : x
  2. Step 2: Convert to fraction form
    5,122.62/7,069.55 = 2,854.32/x
  3. Step 3: Cross multiply
    5,122.62x = 7,069.55 × 2,854.32
  4. Step 4: Simplify right side
    5,122.62x = 20,178,757.96
  5. Step 5: Solve for x
    x = 20,178,757.96/5,122.62
  6. Step 6: Final answer
    x = 3,939.15

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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.