Home / 5,517.82-7,615.80-3,395.18

Finding the Fourth Proportional to 5,517.82, 7,615.80 and 3,395.18

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Solution

The fourth proportional to 5,517.82, 7,615.80 and 3,395.18 is: 4,686.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.82 : 7,615.80 = 3,395.18 : x
  2. Step 2: Convert to fraction form
    5,517.82/7,615.80 = 3,395.18/x
  3. Step 3: Cross multiply
    5,517.82x = 7,615.80 × 3,395.18
  4. Step 4: Simplify right side
    5,517.82x = 25,857,011.84
  5. Step 5: Solve for x
    x = 25,857,011.84/5,517.82
  6. Step 6: Final answer
    x = 4,686.09

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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.