Home / 2,779.78-4,170.63-1,049.38

Finding the Fourth Proportional to 2,779.78, 4,170.63 and 1,049.38

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Solution

The fourth proportional to 2,779.78, 4,170.63 and 1,049.38 is: 1,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.78 : 4,170.63 = 1,049.38 : x
  2. Step 2: Convert to fraction form
    2,779.78/4,170.63 = 1,049.38/x
  3. Step 3: Cross multiply
    2,779.78x = 4,170.63 × 1,049.38
  4. Step 4: Simplify right side
    2,779.78x = 4,376,575.71
  5. Step 5: Solve for x
    x = 4,376,575.71/2,779.78
  6. Step 6: Final answer
    x = 1,574.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.