Home / 1,943.11-2,679.83-1,313.47

Finding the Fourth Proportional to 1,943.11, 2,679.83 and 1,313.47

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Solution

The fourth proportional to 1,943.11, 2,679.83 and 1,313.47 is: 1,811.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.11 : 2,679.83 = 1,313.47 : x
  2. Step 2: Convert to fraction form
    1,943.11/2,679.83 = 1,313.47/x
  3. Step 3: Cross multiply
    1,943.11x = 2,679.83 × 1,313.47
  4. Step 4: Simplify right side
    1,943.11x = 3,519,862.91
  5. Step 5: Solve for x
    x = 3,519,862.91/1,943.11
  6. Step 6: Final answer
    x = 1,811.46

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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.