Home / 2,428.68-3,351.25-1,433.80

Finding the Fourth Proportional to 2,428.68, 3,351.25 and 1,433.80

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Solution

The fourth proportional to 2,428.68, 3,351.25 and 1,433.80 is: 1,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.68 : 3,351.25 = 1,433.80 : x
  2. Step 2: Convert to fraction form
    2,428.68/3,351.25 = 1,433.80/x
  3. Step 3: Cross multiply
    2,428.68x = 3,351.25 × 1,433.80
  4. Step 4: Simplify right side
    2,428.68x = 4,805,022.25
  5. Step 5: Solve for x
    x = 4,805,022.25/2,428.68
  6. Step 6: Final answer
    x = 1,978.45

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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.