Home / 1,208.29-1,811.19-591.79

Finding the Fourth Proportional to 1,208.29, 1,811.19 and 591.79

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Solution

The fourth proportional to 1,208.29, 1,811.19 and 591.79 is: 887.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208.29 : 1,811.19 = 591.79 : x
  2. Step 2: Convert to fraction form
    1,208.29/1,811.19 = 591.79/x
  3. Step 3: Cross multiply
    1,208.29x = 1,811.19 × 591.79
  4. Step 4: Simplify right side
    1,208.29x = 1,071,844.13
  5. Step 5: Solve for x
    x = 1,071,844.13/1,208.29
  6. Step 6: Final answer
    x = 887.08

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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.