Home / 2,897.22-4,351.32-1,809.21

Finding the Fourth Proportional to 2,897.22, 4,351.32 and 1,809.21

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Solution

The fourth proportional to 2,897.22, 4,351.32 and 1,809.21 is: 2,717.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.22 : 4,351.32 = 1,809.21 : x
  2. Step 2: Convert to fraction form
    2,897.22/4,351.32 = 1,809.21/x
  3. Step 3: Cross multiply
    2,897.22x = 4,351.32 × 1,809.21
  4. Step 4: Simplify right side
    2,897.22x = 7,872,451.66
  5. Step 5: Solve for x
    x = 7,872,451.66/2,897.22
  6. Step 6: Final answer
    x = 2,717.24

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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.