Home / 3,428.11-4,730.82-1,856.21

Finding the Fourth Proportional to 3,428.11, 4,730.82 and 1,856.21

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Solution

The fourth proportional to 3,428.11, 4,730.82 and 1,856.21 is: 2,561.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.11 : 4,730.82 = 1,856.21 : x
  2. Step 2: Convert to fraction form
    3,428.11/4,730.82 = 1,856.21/x
  3. Step 3: Cross multiply
    3,428.11x = 4,730.82 × 1,856.21
  4. Step 4: Simplify right side
    3,428.11x = 8,781,364.78
  5. Step 5: Solve for x
    x = 8,781,364.78/3,428.11
  6. Step 6: Final answer
    x = 2,561.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.