Home / 1,183.72-1,634.66-1,119.08

Finding the Fourth Proportional to 1,183.72, 1,634.66 and 1,119.08

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Solution

The fourth proportional to 1,183.72, 1,634.66 and 1,119.08 is: 1,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.72 : 1,634.66 = 1,119.08 : x
  2. Step 2: Convert to fraction form
    1,183.72/1,634.66 = 1,119.08/x
  3. Step 3: Cross multiply
    1,183.72x = 1,634.66 × 1,119.08
  4. Step 4: Simplify right side
    1,183.72x = 1,829,315.31
  5. Step 5: Solve for x
    x = 1,829,315.31/1,183.72
  6. Step 6: Final answer
    x = 1,545.40

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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.