Home / 5,257.80-7,255.62-2,899.79

Finding the Fourth Proportional to 5,257.80, 7,255.62 and 2,899.79

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Solution

The fourth proportional to 5,257.80, 7,255.62 and 2,899.79 is: 4,001.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.80 : 7,255.62 = 2,899.79 : x
  2. Step 2: Convert to fraction form
    5,257.80/7,255.62 = 2,899.79/x
  3. Step 3: Cross multiply
    5,257.80x = 7,255.62 × 2,899.79
  4. Step 4: Simplify right side
    5,257.80x = 21,039,738.04
  5. Step 5: Solve for x
    x = 21,039,738.04/5,257.80
  6. Step 6: Final answer
    x = 4,001.62

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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.