Home / 3,422.18-4,722.57-1,930.58

Finding the Fourth Proportional to 3,422.18, 4,722.57 and 1,930.58

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Solution

The fourth proportional to 3,422.18, 4,722.57 and 1,930.58 is: 2,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.18 : 4,722.57 = 1,930.58 : x
  2. Step 2: Convert to fraction form
    3,422.18/4,722.57 = 1,930.58/x
  3. Step 3: Cross multiply
    3,422.18x = 4,722.57 × 1,930.58
  4. Step 4: Simplify right side
    3,422.18x = 9,117,293.29
  5. Step 5: Solve for x
    x = 9,117,293.29/3,422.18
  6. Step 6: Final answer
    x = 2,664.18

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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.