Home / 1,331.08-1,834.50-1,083.22

Finding the Fourth Proportional to 1,331.08, 1,834.50 and 1,083.22

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Solution

The fourth proportional to 1,331.08, 1,834.50 and 1,083.22 is: 1,492.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.08 : 1,834.50 = 1,083.22 : x
  2. Step 2: Convert to fraction form
    1,331.08/1,834.50 = 1,083.22/x
  3. Step 3: Cross multiply
    1,331.08x = 1,834.50 × 1,083.22
  4. Step 4: Simplify right side
    1,331.08x = 1,987,167.09
  5. Step 5: Solve for x
    x = 1,987,167.09/1,331.08
  6. Step 6: Final answer
    x = 1,492.90

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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.