Home / 2,383.93-3,287.87-1,678.11

Finding the Fourth Proportional to 2,383.93, 3,287.87 and 1,678.11

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Solution

The fourth proportional to 2,383.93, 3,287.87 and 1,678.11 is: 2,314.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.93 : 3,287.87 = 1,678.11 : x
  2. Step 2: Convert to fraction form
    2,383.93/3,287.87 = 1,678.11/x
  3. Step 3: Cross multiply
    2,383.93x = 3,287.87 × 1,678.11
  4. Step 4: Simplify right side
    2,383.93x = 5,517,411.72
  5. Step 5: Solve for x
    x = 5,517,411.72/2,383.93
  6. Step 6: Final answer
    x = 2,314.42

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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.