Home / 1,839.32-2,538.66-1,131.77

Finding the Fourth Proportional to 1,839.32, 2,538.66 and 1,131.77

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Solution

The fourth proportional to 1,839.32, 2,538.66 and 1,131.77 is: 1,562.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.32 : 2,538.66 = 1,131.77 : x
  2. Step 2: Convert to fraction form
    1,839.32/2,538.66 = 1,131.77/x
  3. Step 3: Cross multiply
    1,839.32x = 2,538.66 × 1,131.77
  4. Step 4: Simplify right side
    1,839.32x = 2,873,163.71
  5. Step 5: Solve for x
    x = 2,873,163.71/1,839.32
  6. Step 6: Final answer
    x = 1,562.08

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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.