Home / 2,428.14-3,642.66-1,389.33

Finding the Fourth Proportional to 2,428.14, 3,642.66 and 1,389.33

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Solution

The fourth proportional to 2,428.14, 3,642.66 and 1,389.33 is: 2,084.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.14 : 3,642.66 = 1,389.33 : x
  2. Step 2: Convert to fraction form
    2,428.14/3,642.66 = 1,389.33/x
  3. Step 3: Cross multiply
    2,428.14x = 3,642.66 × 1,389.33
  4. Step 4: Simplify right side
    2,428.14x = 5,060,856.82
  5. Step 5: Solve for x
    x = 5,060,856.82/2,428.14
  6. Step 6: Final answer
    x = 2,084.25

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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.