Home / 2,779.56-3,837.78-2,182.68

Finding the Fourth Proportional to 2,779.56, 3,837.78 and 2,182.68

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Solution

The fourth proportional to 2,779.56, 3,837.78 and 2,182.68 is: 3,013.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.56 : 3,837.78 = 2,182.68 : x
  2. Step 2: Convert to fraction form
    2,779.56/3,837.78 = 2,182.68/x
  3. Step 3: Cross multiply
    2,779.56x = 3,837.78 × 2,182.68
  4. Step 4: Simplify right side
    2,779.56x = 8,376,645.65
  5. Step 5: Solve for x
    x = 8,376,645.65/2,779.56
  6. Step 6: Final answer
    x = 3,013.66

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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.