Home / 1,618.39-2,233.91-1,021.87

Finding the Fourth Proportional to 1,618.39, 2,233.91 and 1,021.87

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Solution

The fourth proportional to 1,618.39, 2,233.91 and 1,021.87 is: 1,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.39 : 2,233.91 = 1,021.87 : x
  2. Step 2: Convert to fraction form
    1,618.39/2,233.91 = 1,021.87/x
  3. Step 3: Cross multiply
    1,618.39x = 2,233.91 × 1,021.87
  4. Step 4: Simplify right side
    1,618.39x = 2,282,765.61
  5. Step 5: Solve for x
    x = 2,282,765.61/1,618.39
  6. Step 6: Final answer
    x = 1,410.52

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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.