Home / 1,811.08-2,716.66-1,539.08

Finding the Fourth Proportional to 1,811.08, 2,716.66 and 1,539.08

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Solution

The fourth proportional to 1,811.08, 2,716.66 and 1,539.08 is: 2,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.08 : 2,716.66 = 1,539.08 : x
  2. Step 2: Convert to fraction form
    1,811.08/2,716.66 = 1,539.08/x
  3. Step 3: Cross multiply
    1,811.08x = 2,716.66 × 1,539.08
  4. Step 4: Simplify right side
    1,811.08x = 4,181,157.07
  5. Step 5: Solve for x
    x = 4,181,157.07/1,811.08
  6. Step 6: Final answer
    x = 2,308.65

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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.