Home / 2,443.47-3,371.91-1,381.28

Finding the Fourth Proportional to 2,443.47, 3,371.91 and 1,381.28

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Solution

The fourth proportional to 2,443.47, 3,371.91 and 1,381.28 is: 1,906.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,443.47 : 3,371.91 = 1,381.28 : x
  2. Step 2: Convert to fraction form
    2,443.47/3,371.91 = 1,381.28/x
  3. Step 3: Cross multiply
    2,443.47x = 3,371.91 × 1,381.28
  4. Step 4: Simplify right side
    2,443.47x = 4,657,534.99
  5. Step 5: Solve for x
    x = 4,657,534.99/2,443.47
  6. Step 6: Final answer
    x = 1,906.12

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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.