Home / 3,428.15-4,730.81-1,936.06

Finding the Fourth Proportional to 3,428.15, 4,730.81 and 1,936.06

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Solution

The fourth proportional to 3,428.15, 4,730.81 and 1,936.06 is: 2,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.15 : 4,730.81 = 1,936.06 : x
  2. Step 2: Convert to fraction form
    3,428.15/4,730.81 = 1,936.06/x
  3. Step 3: Cross multiply
    3,428.15x = 4,730.81 × 1,936.06
  4. Step 4: Simplify right side
    3,428.15x = 9,159,110.50
  5. Step 5: Solve for x
    x = 9,159,110.50/3,428.15
  6. Step 6: Final answer
    x = 2,671.74

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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.