Home / 3,715.31-5,571.56-1,215.92

Finding the Fourth Proportional to 3,715.31, 5,571.56 and 1,215.92

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Solution

The fourth proportional to 3,715.31, 5,571.56 and 1,215.92 is: 1,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.31 : 5,571.56 = 1,215.92 : x
  2. Step 2: Convert to fraction form
    3,715.31/5,571.56 = 1,215.92/x
  3. Step 3: Cross multiply
    3,715.31x = 5,571.56 × 1,215.92
  4. Step 4: Simplify right side
    3,715.31x = 6,774,537.30
  5. Step 5: Solve for x
    x = 6,774,537.30/3,715.31
  6. Step 6: Final answer
    x = 1,823.41

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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.