Home / 1,966.18-2,712.76-1,267.96

Finding the Fourth Proportional to 1,966.18, 2,712.76 and 1,267.96

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Solution

The fourth proportional to 1,966.18, 2,712.76 and 1,267.96 is: 1,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.18 : 2,712.76 = 1,267.96 : x
  2. Step 2: Convert to fraction form
    1,966.18/2,712.76 = 1,267.96/x
  3. Step 3: Cross multiply
    1,966.18x = 2,712.76 × 1,267.96
  4. Step 4: Simplify right side
    1,966.18x = 3,439,671.17
  5. Step 5: Solve for x
    x = 3,439,671.17/1,966.18
  6. Step 6: Final answer
    x = 1,749.42

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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.