Home / 5,279.27-7,286.16-3,290.45

Finding the Fourth Proportional to 5,279.27, 7,286.16 and 3,290.45

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Solution

The fourth proportional to 5,279.27, 7,286.16 and 3,290.45 is: 4,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.27 : 7,286.16 = 3,290.45 : x
  2. Step 2: Convert to fraction form
    5,279.27/7,286.16 = 3,290.45/x
  3. Step 3: Cross multiply
    5,279.27x = 7,286.16 × 3,290.45
  4. Step 4: Simplify right side
    5,279.27x = 23,974,745.17
  5. Step 5: Solve for x
    x = 23,974,745.17/5,279.27
  6. Step 6: Final answer
    x = 4,541.30

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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.