Home / 3,422.01-4,722.37-1,929.90

Finding the Fourth Proportional to 3,422.01, 4,722.37 and 1,929.90

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Solution

The fourth proportional to 3,422.01, 4,722.37 and 1,929.90 is: 2,663.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.01 : 4,722.37 = 1,929.90 : x
  2. Step 2: Convert to fraction form
    3,422.01/4,722.37 = 1,929.90/x
  3. Step 3: Cross multiply
    3,422.01x = 4,722.37 × 1,929.90
  4. Step 4: Simplify right side
    3,422.01x = 9,113,701.86
  5. Step 5: Solve for x
    x = 9,113,701.86/3,422.01
  6. Step 6: Final answer
    x = 2,663.26

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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.