Home / 1,933.16-2,667.66-1,187.18

Finding the Fourth Proportional to 1,933.16, 2,667.66 and 1,187.18

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Solution

The fourth proportional to 1,933.16, 2,667.66 and 1,187.18 is: 1,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.16 : 2,667.66 = 1,187.18 : x
  2. Step 2: Convert to fraction form
    1,933.16/2,667.66 = 1,187.18/x
  3. Step 3: Cross multiply
    1,933.16x = 2,667.66 × 1,187.18
  4. Step 4: Simplify right side
    1,933.16x = 3,166,992.60
  5. Step 5: Solve for x
    x = 3,166,992.60/1,933.16
  6. Step 6: Final answer
    x = 1,638.25

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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.