Home / 3,422.11-4,722.48-1,929.95

Finding the Fourth Proportional to 3,422.11, 4,722.48 and 1,929.95

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Solution

The fourth proportional to 3,422.11, 4,722.48 and 1,929.95 is: 2,663.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.11 : 4,722.48 = 1,929.95 : x
  2. Step 2: Convert to fraction form
    3,422.11/4,722.48 = 1,929.95/x
  3. Step 3: Cross multiply
    3,422.11x = 4,722.48 × 1,929.95
  4. Step 4: Simplify right side
    3,422.11x = 9,114,162.08
  5. Step 5: Solve for x
    x = 9,114,162.08/3,422.11
  6. Step 6: Final answer
    x = 2,663.32

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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.