Home / 5,225.90-7,215.12-3,238.56

Finding the Fourth Proportional to 5,225.90, 7,215.12 and 3,238.56

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Solution

The fourth proportional to 5,225.90, 7,215.12 and 3,238.56 is: 4,471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.90 : 7,215.12 = 3,238.56 : x
  2. Step 2: Convert to fraction form
    5,225.90/7,215.12 = 3,238.56/x
  3. Step 3: Cross multiply
    5,225.90x = 7,215.12 × 3,238.56
  4. Step 4: Simplify right side
    5,225.90x = 23,366,608.97
  5. Step 5: Solve for x
    x = 23,366,608.97/5,225.90
  6. Step 6: Final answer
    x = 4,471.31

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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.