Home / 2,821.14-4,211.15-2,590.02

Finding the Fourth Proportional to 2,821.14, 4,211.15 and 2,590.02

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Solution

The fourth proportional to 2,821.14, 4,211.15 and 2,590.02 is: 3,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.14 : 4,211.15 = 2,590.02 : x
  2. Step 2: Convert to fraction form
    2,821.14/4,211.15 = 2,590.02/x
  3. Step 3: Cross multiply
    2,821.14x = 4,211.15 × 2,590.02
  4. Step 4: Simplify right side
    2,821.14x = 10,906,949.77
  5. Step 5: Solve for x
    x = 10,906,949.77/2,821.14
  6. Step 6: Final answer
    x = 3,866.15

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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.