Home / 1,943.49-2,682.14-1,281.59

Finding the Fourth Proportional to 1,943.49, 2,682.14 and 1,281.59

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Solution

The fourth proportional to 1,943.49, 2,682.14 and 1,281.59 is: 1,768.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.49 : 2,682.14 = 1,281.59 : x
  2. Step 2: Convert to fraction form
    1,943.49/2,682.14 = 1,281.59/x
  3. Step 3: Cross multiply
    1,943.49x = 2,682.14 × 1,281.59
  4. Step 4: Simplify right side
    1,943.49x = 3,437,383.98
  5. Step 5: Solve for x
    x = 3,437,383.98/1,943.49
  6. Step 6: Final answer
    x = 1,768.67

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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.