Home / 2,904.31-4,007.98-1,578.03

Finding the Fourth Proportional to 2,904.31, 4,007.98 and 1,578.03

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Solution

The fourth proportional to 2,904.31, 4,007.98 and 1,578.03 is: 2,177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.31 : 4,007.98 = 1,578.03 : x
  2. Step 2: Convert to fraction form
    2,904.31/4,007.98 = 1,578.03/x
  3. Step 3: Cross multiply
    2,904.31x = 4,007.98 × 1,578.03
  4. Step 4: Simplify right side
    2,904.31x = 6,324,712.68
  5. Step 5: Solve for x
    x = 6,324,712.68/2,904.31
  6. Step 6: Final answer
    x = 2,177.70

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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.