Home / 5,422.80-7,482.36-3,185.04

Finding the Fourth Proportional to 5,422.80, 7,482.36 and 3,185.04

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Solution

The fourth proportional to 5,422.80, 7,482.36 and 3,185.04 is: 4,394.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.80 : 7,482.36 = 3,185.04 : x
  2. Step 2: Convert to fraction form
    5,422.80/7,482.36 = 3,185.04/x
  3. Step 3: Cross multiply
    5,422.80x = 7,482.36 × 3,185.04
  4. Step 4: Simplify right side
    5,422.80x = 23,831,615.89
  5. Step 5: Solve for x
    x = 23,831,615.89/5,422.80
  6. Step 6: Final answer
    x = 4,394.71

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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.