Home / 2,779.17-4,169.91-1,218.36

Finding the Fourth Proportional to 2,779.17, 4,169.91 and 1,218.36

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Solution

The fourth proportional to 2,779.17, 4,169.91 and 1,218.36 is: 1,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.17 : 4,169.91 = 1,218.36 : x
  2. Step 2: Convert to fraction form
    2,779.17/4,169.91 = 1,218.36/x
  3. Step 3: Cross multiply
    2,779.17x = 4,169.91 × 1,218.36
  4. Step 4: Simplify right side
    2,779.17x = 5,080,451.55
  5. Step 5: Solve for x
    x = 5,080,451.55/2,779.17
  6. Step 6: Final answer
    x = 1,828.05

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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.