Home / 2,452.11-3,383.73-1,389.89

Finding the Fourth Proportional to 2,452.11, 3,383.73 and 1,389.89

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Solution

The fourth proportional to 2,452.11, 3,383.73 and 1,389.89 is: 1,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,452.11 : 3,383.73 = 1,389.89 : x
  2. Step 2: Convert to fraction form
    2,452.11/3,383.73 = 1,389.89/x
  3. Step 3: Cross multiply
    2,452.11x = 3,383.73 × 1,389.89
  4. Step 4: Simplify right side
    2,452.11x = 4,703,020.95
  5. Step 5: Solve for x
    x = 4,703,020.95/2,452.11
  6. Step 6: Final answer
    x = 1,917.95

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1.5x scale

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.