Home / 5,286.20-7,295.64-3,018.20

Finding the Fourth Proportional to 5,286.20, 7,295.64 and 3,018.20

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Solution

The fourth proportional to 5,286.20, 7,295.64 and 3,018.20 is: 4,165.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.20 : 7,295.64 = 3,018.20 : x
  2. Step 2: Convert to fraction form
    5,286.20/7,295.64 = 3,018.20/x
  3. Step 3: Cross multiply
    5,286.20x = 7,295.64 × 3,018.20
  4. Step 4: Simplify right side
    5,286.20x = 22,019,700.65
  5. Step 5: Solve for x
    x = 22,019,700.65/5,286.20
  6. Step 6: Final answer
    x = 4,165.51

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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.