Home / 1,883.74-2,598.33-1,221.43

Finding the Fourth Proportional to 1,883.74, 2,598.33 and 1,221.43

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Solution

The fourth proportional to 1,883.74, 2,598.33 and 1,221.43 is: 1,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.74 : 2,598.33 = 1,221.43 : x
  2. Step 2: Convert to fraction form
    1,883.74/2,598.33 = 1,221.43/x
  3. Step 3: Cross multiply
    1,883.74x = 2,598.33 × 1,221.43
  4. Step 4: Simplify right side
    1,883.74x = 3,173,678.21
  5. Step 5: Solve for x
    x = 3,173,678.21/1,883.74
  6. Step 6: Final answer
    x = 1,684.78

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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.