Home / 2,080.43-2,869.91-1,408.26

Finding the Fourth Proportional to 2,080.43, 2,869.91 and 1,408.26

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Solution

The fourth proportional to 2,080.43, 2,869.91 and 1,408.26 is: 1,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.43 : 2,869.91 = 1,408.26 : x
  2. Step 2: Convert to fraction form
    2,080.43/2,869.91 = 1,408.26/x
  3. Step 3: Cross multiply
    2,080.43x = 2,869.91 × 1,408.26
  4. Step 4: Simplify right side
    2,080.43x = 4,041,565.11
  5. Step 5: Solve for x
    x = 4,041,565.11/2,080.43
  6. Step 6: Final answer
    x = 1,942.66

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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.