Home / 1,091.24-1,628.85-963.08

Finding the Fourth Proportional to 1,091.24, 1,628.85 and 963.08

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Solution

The fourth proportional to 1,091.24, 1,628.85 and 963.08 is: 1,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091.24 : 1,628.85 = 963.08 : x
  2. Step 2: Convert to fraction form
    1,091.24/1,628.85 = 963.08/x
  3. Step 3: Cross multiply
    1,091.24x = 1,628.85 × 963.08
  4. Step 4: Simplify right side
    1,091.24x = 1,568,712.86
  5. Step 5: Solve for x
    x = 1,568,712.86/1,091.24
  6. Step 6: Final answer
    x = 1,437.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.