Home / 1,768.12-2,441.13-1,209.52

Finding the Fourth Proportional to 1,768.12, 2,441.13 and 1,209.52

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Solution

The fourth proportional to 1,768.12, 2,441.13 and 1,209.52 is: 1,669.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.12 : 2,441.13 = 1,209.52 : x
  2. Step 2: Convert to fraction form
    1,768.12/2,441.13 = 1,209.52/x
  3. Step 3: Cross multiply
    1,768.12x = 2,441.13 × 1,209.52
  4. Step 4: Simplify right side
    1,768.12x = 2,952,595.56
  5. Step 5: Solve for x
    x = 2,952,595.56/1,768.12
  6. Step 6: Final answer
    x = 1,669.91

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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.