Home / 3,428.51-5,141.70-1,236.95

Finding the Fourth Proportional to 3,428.51, 5,141.70 and 1,236.95

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Solution

The fourth proportional to 3,428.51, 5,141.70 and 1,236.95 is: 1,855.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.51 : 5,141.70 = 1,236.95 : x
  2. Step 2: Convert to fraction form
    3,428.51/5,141.70 = 1,236.95/x
  3. Step 3: Cross multiply
    3,428.51x = 5,141.70 × 1,236.95
  4. Step 4: Simplify right side
    3,428.51x = 6,360,040.22
  5. Step 5: Solve for x
    x = 6,360,040.22/3,428.51
  6. Step 6: Final answer
    x = 1,855.04

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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.