Home / 3,422.05-4,722.47-1,929.83

Finding the Fourth Proportional to 3,422.05, 4,722.47 and 1,929.83

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Solution

The fourth proportional to 3,422.05, 4,722.47 and 1,929.83 is: 2,663.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.05 : 4,722.47 = 1,929.83 : x
  2. Step 2: Convert to fraction form
    3,422.05/4,722.47 = 1,929.83/x
  3. Step 3: Cross multiply
    3,422.05x = 4,722.47 × 1,929.83
  4. Step 4: Simplify right side
    3,422.05x = 9,113,538.26
  5. Step 5: Solve for x
    x = 9,113,538.26/3,422.05
  6. Step 6: Final answer
    x = 2,663.18

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1.5x scale

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.