Home / 5,428.49-8,143.82-2,308.48

Finding the Fourth Proportional to 5,428.49, 8,143.82 and 2,308.48

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Solution

The fourth proportional to 5,428.49, 8,143.82 and 2,308.48 is: 3,463.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.49 : 8,143.82 = 2,308.48 : x
  2. Step 2: Convert to fraction form
    5,428.49/8,143.82 = 2,308.48/x
  3. Step 3: Cross multiply
    5,428.49x = 8,143.82 × 2,308.48
  4. Step 4: Simplify right side
    5,428.49x = 18,799,831.01
  5. Step 5: Solve for x
    x = 18,799,831.01/5,428.49
  6. Step 6: Final answer
    x = 3,463.18

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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.