Home / 2,779.72-4,165.68-1,843.76

Finding the Fourth Proportional to 2,779.72, 4,165.68 and 1,843.76

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Solution

The fourth proportional to 2,779.72, 4,165.68 and 1,843.76 is: 2,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.72 : 4,165.68 = 1,843.76 : x
  2. Step 2: Convert to fraction form
    2,779.72/4,165.68 = 1,843.76/x
  3. Step 3: Cross multiply
    2,779.72x = 4,165.68 × 1,843.76
  4. Step 4: Simplify right side
    2,779.72x = 7,680,514.16
  5. Step 5: Solve for x
    x = 7,680,514.16/2,779.72
  6. Step 6: Final answer
    x = 2,763.05

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1.5x scale

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.