Home / 5,257.71-7,255.58-2,899.80

Finding the Fourth Proportional to 5,257.71, 7,255.58 and 2,899.80

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Solution

The fourth proportional to 5,257.71, 7,255.58 and 2,899.80 is: 4,001.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.71 : 7,255.58 = 2,899.80 : x
  2. Step 2: Convert to fraction form
    5,257.71/7,255.58 = 2,899.80/x
  3. Step 3: Cross multiply
    5,257.71x = 7,255.58 × 2,899.80
  4. Step 4: Simplify right side
    5,257.71x = 21,039,716.39
  5. Step 5: Solve for x
    x = 21,039,716.39/5,257.71
  6. Step 6: Final answer
    x = 4,001.69

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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.