Home / 5,257.72-7,255.38-2,899.42

Finding the Fourth Proportional to 5,257.72, 7,255.38 and 2,899.42

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Solution

The fourth proportional to 5,257.72, 7,255.38 and 2,899.42 is: 4,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.72 : 7,255.38 = 2,899.42 : x
  2. Step 2: Convert to fraction form
    5,257.72/7,255.38 = 2,899.42/x
  3. Step 3: Cross multiply
    5,257.72x = 7,255.38 × 2,899.42
  4. Step 4: Simplify right side
    5,257.72x = 21,036,393.88
  5. Step 5: Solve for x
    x = 21,036,393.88/5,257.72
  6. Step 6: Final answer
    x = 4,001.05

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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.