Home / 1,242.73-1,865.39-1,214.84

Finding the Fourth Proportional to 1,242.73, 1,865.39 and 1,214.84

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Solution

The fourth proportional to 1,242.73, 1,865.39 and 1,214.84 is: 1,823.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242.73 : 1,865.39 = 1,214.84 : x
  2. Step 2: Convert to fraction form
    1,242.73/1,865.39 = 1,214.84/x
  3. Step 3: Cross multiply
    1,242.73x = 1,865.39 × 1,214.84
  4. Step 4: Simplify right side
    1,242.73x = 2,266,150.39
  5. Step 5: Solve for x
    x = 2,266,150.39/1,242.73
  6. Step 6: Final answer
    x = 1,823.53

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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.