Home / 1,981.06-2,733.99-1,141.75

Finding the Fourth Proportional to 1,981.06, 2,733.99 and 1,141.75

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Solution

The fourth proportional to 1,981.06, 2,733.99 and 1,141.75 is: 1,575.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.06 : 2,733.99 = 1,141.75 : x
  2. Step 2: Convert to fraction form
    1,981.06/2,733.99 = 1,141.75/x
  3. Step 3: Cross multiply
    1,981.06x = 2,733.99 × 1,141.75
  4. Step 4: Simplify right side
    1,981.06x = 3,121,533.08
  5. Step 5: Solve for x
    x = 3,121,533.08/1,981.06
  6. Step 6: Final answer
    x = 1,575.69

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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.