Home / 1,909.98-2,635.68-1,201.62

Finding the Fourth Proportional to 1,909.98, 2,635.68 and 1,201.62

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Solution

The fourth proportional to 1,909.98, 2,635.68 and 1,201.62 is: 1,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.98 : 2,635.68 = 1,201.62 : x
  2. Step 2: Convert to fraction form
    1,909.98/2,635.68 = 1,201.62/x
  3. Step 3: Cross multiply
    1,909.98x = 2,635.68 × 1,201.62
  4. Step 4: Simplify right side
    1,909.98x = 3,167,085.80
  5. Step 5: Solve for x
    x = 3,167,085.80/1,909.98
  6. Step 6: Final answer
    x = 1,658.18

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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.