Home / 2,839.80-4,240.55-2,320.85

Finding the Fourth Proportional to 2,839.80, 4,240.55 and 2,320.85

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Solution

The fourth proportional to 2,839.80, 4,240.55 and 2,320.85 is: 3,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.80 : 4,240.55 = 2,320.85 : x
  2. Step 2: Convert to fraction form
    2,839.80/4,240.55 = 2,320.85/x
  3. Step 3: Cross multiply
    2,839.80x = 4,240.55 × 2,320.85
  4. Step 4: Simplify right side
    2,839.80x = 9,841,647.66
  5. Step 5: Solve for x
    x = 9,841,647.66/2,839.80
  6. Step 6: Final answer
    x = 3,465.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.