Home / 3,428.22-4,730.71-1,936.20

Finding the Fourth Proportional to 3,428.22, 4,730.71 and 1,936.20

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Solution

The fourth proportional to 3,428.22, 4,730.71 and 1,936.20 is: 2,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.22 : 4,730.71 = 1,936.20 : x
  2. Step 2: Convert to fraction form
    3,428.22/4,730.71 = 1,936.20/x
  3. Step 3: Cross multiply
    3,428.22x = 4,730.71 × 1,936.20
  4. Step 4: Simplify right side
    3,428.22x = 9,159,600.70
  5. Step 5: Solve for x
    x = 9,159,600.70/3,428.22
  6. Step 6: Final answer
    x = 2,671.82

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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.