Home / 2,721.16-4,078.50-1,894.96

Finding the Fourth Proportional to 2,721.16, 4,078.50 and 1,894.96

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Solution

The fourth proportional to 2,721.16, 4,078.50 and 1,894.96 is: 2,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.16 : 4,078.50 = 1,894.96 : x
  2. Step 2: Convert to fraction form
    2,721.16/4,078.50 = 1,894.96/x
  3. Step 3: Cross multiply
    2,721.16x = 4,078.50 × 1,894.96
  4. Step 4: Simplify right side
    2,721.16x = 7,728,594.36
  5. Step 5: Solve for x
    x = 7,728,594.36/2,721.16
  6. Step 6: Final answer
    x = 2,840.18

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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.