Home / 2,764.13-3,815.08-1,821.44

Finding the Fourth Proportional to 2,764.13, 3,815.08 and 1,821.44

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Solution

The fourth proportional to 2,764.13, 3,815.08 and 1,821.44 is: 2,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.13 : 3,815.08 = 1,821.44 : x
  2. Step 2: Convert to fraction form
    2,764.13/3,815.08 = 1,821.44/x
  3. Step 3: Cross multiply
    2,764.13x = 3,815.08 × 1,821.44
  4. Step 4: Simplify right side
    2,764.13x = 6,948,944.30
  5. Step 5: Solve for x
    x = 6,948,944.30/2,764.13
  6. Step 6: Final answer
    x = 2,513.98

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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.