Home / 2,166.12-2,988.30-1,269.96

Finding the Fourth Proportional to 2,166.12, 2,988.30 and 1,269.96

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Solution

The fourth proportional to 2,166.12, 2,988.30 and 1,269.96 is: 1,751.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.12 : 2,988.30 = 1,269.96 : x
  2. Step 2: Convert to fraction form
    2,166.12/2,988.30 = 1,269.96/x
  3. Step 3: Cross multiply
    2,166.12x = 2,988.30 × 1,269.96
  4. Step 4: Simplify right side
    2,166.12x = 3,795,021.47
  5. Step 5: Solve for x
    x = 3,795,021.47/2,166.12
  6. Step 6: Final answer
    x = 1,751.99

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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.