Home / 5,217.35-7,199.82-2,979.23

Finding the Fourth Proportional to 5,217.35, 7,199.82 and 2,979.23

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Solution

The fourth proportional to 5,217.35, 7,199.82 and 2,979.23 is: 4,111.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.35 : 7,199.82 = 2,979.23 : x
  2. Step 2: Convert to fraction form
    5,217.35/7,199.82 = 2,979.23/x
  3. Step 3: Cross multiply
    5,217.35x = 7,199.82 × 2,979.23
  4. Step 4: Simplify right side
    5,217.35x = 21,449,883.74
  5. Step 5: Solve for x
    x = 21,449,883.74/5,217.35
  6. Step 6: Final answer
    x = 4,111.26

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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.