Home / 3,157.38-4,351.93-2,892.65

Finding the Fourth Proportional to 3,157.38, 4,351.93 and 2,892.65

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Solution

The fourth proportional to 3,157.38, 4,351.93 and 2,892.65 is: 3,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.38 : 4,351.93 = 2,892.65 : x
  2. Step 2: Convert to fraction form
    3,157.38/4,351.93 = 2,892.65/x
  3. Step 3: Cross multiply
    3,157.38x = 4,351.93 × 2,892.65
  4. Step 4: Simplify right side
    3,157.38x = 12,588,581.32
  5. Step 5: Solve for x
    x = 12,588,581.32/3,157.38
  6. Step 6: Final answer
    x = 3,987.03

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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.