Home / 1,768.14-2,440.23-1,208.42

Finding the Fourth Proportional to 1,768.14, 2,440.23 and 1,208.42

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Solution

The fourth proportional to 1,768.14, 2,440.23 and 1,208.42 is: 1,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.14 : 2,440.23 = 1,208.42 : x
  2. Step 2: Convert to fraction form
    1,768.14/2,440.23 = 1,208.42/x
  3. Step 3: Cross multiply
    1,768.14x = 2,440.23 × 1,208.42
  4. Step 4: Simplify right side
    1,768.14x = 2,948,822.74
  5. Step 5: Solve for x
    x = 2,948,822.74/1,768.14
  6. Step 6: Final answer
    x = 1,667.75

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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.