Home / 3,238.49-4,856.70-1,389.11

Finding the Fourth Proportional to 3,238.49, 4,856.70 and 1,389.11

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Solution

The fourth proportional to 3,238.49, 4,856.70 and 1,389.11 is: 2,083.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.49 : 4,856.70 = 1,389.11 : x
  2. Step 2: Convert to fraction form
    3,238.49/4,856.70 = 1,389.11/x
  3. Step 3: Cross multiply
    3,238.49x = 4,856.70 × 1,389.11
  4. Step 4: Simplify right side
    3,238.49x = 6,746,490.54
  5. Step 5: Solve for x
    x = 6,746,490.54/3,238.49
  6. Step 6: Final answer
    x = 2,083.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.