Home / 1,766.90-2,438.52-1,020.84

Finding the Fourth Proportional to 1,766.90, 2,438.52 and 1,020.84

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Solution

The fourth proportional to 1,766.90, 2,438.52 and 1,020.84 is: 1,408.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766.90 : 2,438.52 = 1,020.84 : x
  2. Step 2: Convert to fraction form
    1,766.90/2,438.52 = 1,020.84/x
  3. Step 3: Cross multiply
    1,766.90x = 2,438.52 × 1,020.84
  4. Step 4: Simplify right side
    1,766.90x = 2,489,338.76
  5. Step 5: Solve for x
    x = 2,489,338.76/1,766.90
  6. Step 6: Final answer
    x = 1,408.88

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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.