Home / 5,230.48-7,218.04-2,840.43

Finding the Fourth Proportional to 5,230.48, 7,218.04 and 2,840.43

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Solution

The fourth proportional to 5,230.48, 7,218.04 and 2,840.43 is: 3,919.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.48 : 7,218.04 = 2,840.43 : x
  2. Step 2: Convert to fraction form
    5,230.48/7,218.04 = 2,840.43/x
  3. Step 3: Cross multiply
    5,230.48x = 7,218.04 × 2,840.43
  4. Step 4: Simplify right side
    5,230.48x = 20,502,348.30
  5. Step 5: Solve for x
    x = 20,502,348.30/5,230.48
  6. Step 6: Final answer
    x = 3,919.78

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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.