Home / 2,790.09-4,181.18-2,053.89

Finding the Fourth Proportional to 2,790.09, 4,181.18 and 2,053.89

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Solution

The fourth proportional to 2,790.09, 4,181.18 and 2,053.89 is: 3,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.09 : 4,181.18 = 2,053.89 : x
  2. Step 2: Convert to fraction form
    2,790.09/4,181.18 = 2,053.89/x
  3. Step 3: Cross multiply
    2,790.09x = 4,181.18 × 2,053.89
  4. Step 4: Simplify right side
    2,790.09x = 8,587,673.52
  5. Step 5: Solve for x
    x = 8,587,673.52/2,790.09
  6. Step 6: Final answer
    x = 3,077.92

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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.