Home / 2,557.07-3,828.11-1,943.22

Finding the Fourth Proportional to 2,557.07, 3,828.11 and 1,943.22

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Solution

The fourth proportional to 2,557.07, 3,828.11 and 1,943.22 is: 2,909.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.07 : 3,828.11 = 1,943.22 : x
  2. Step 2: Convert to fraction form
    2,557.07/3,828.11 = 1,943.22/x
  3. Step 3: Cross multiply
    2,557.07x = 3,828.11 × 1,943.22
  4. Step 4: Simplify right side
    2,557.07x = 7,438,850.20
  5. Step 5: Solve for x
    x = 7,438,850.20/2,557.07
  6. Step 6: Final answer
    x = 2,909.14

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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.