Home / 1,933.32-2,667.46-1,187.56

Finding the Fourth Proportional to 1,933.32, 2,667.46 and 1,187.56

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Solution

The fourth proportional to 1,933.32, 2,667.46 and 1,187.56 is: 1,638.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.32 : 2,667.46 = 1,187.56 : x
  2. Step 2: Convert to fraction form
    1,933.32/2,667.46 = 1,187.56/x
  3. Step 3: Cross multiply
    1,933.32x = 2,667.46 × 1,187.56
  4. Step 4: Simplify right side
    1,933.32x = 3,167,768.80
  5. Step 5: Solve for x
    x = 3,167,768.80/1,933.32
  6. Step 6: Final answer
    x = 1,638.51

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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.