Home / 1,191.15-1,786.12-460.94

Finding the Fourth Proportional to 1,191.15, 1,786.12 and 460.94

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Solution

The fourth proportional to 1,191.15, 1,786.12 and 460.94 is: 691.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.15 : 1,786.12 = 460.94 : x
  2. Step 2: Convert to fraction form
    1,191.15/1,786.12 = 460.94/x
  3. Step 3: Cross multiply
    1,191.15x = 1,786.12 × 460.94
  4. Step 4: Simplify right side
    1,191.15x = 823,284.07
  5. Step 5: Solve for x
    x = 823,284.07/1,191.15
  6. Step 6: Final answer
    x = 691.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.