Home / 1,778.42-2,452.90-1,306.17

Finding the Fourth Proportional to 1,778.42, 2,452.90 and 1,306.17

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Solution

The fourth proportional to 1,778.42, 2,452.90 and 1,306.17 is: 1,801.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.42 : 2,452.90 = 1,306.17 : x
  2. Step 2: Convert to fraction form
    1,778.42/2,452.90 = 1,306.17/x
  3. Step 3: Cross multiply
    1,778.42x = 2,452.90 × 1,306.17
  4. Step 4: Simplify right side
    1,778.42x = 3,203,904.39
  5. Step 5: Solve for x
    x = 3,203,904.39/1,778.42
  6. Step 6: Final answer
    x = 1,801.55

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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.