Home / 3,556.31-5,334.76-1,215.61

Finding the Fourth Proportional to 3,556.31, 5,334.76 and 1,215.61

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Solution

The fourth proportional to 3,556.31, 5,334.76 and 1,215.61 is: 1,823.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.31 : 5,334.76 = 1,215.61 : x
  2. Step 2: Convert to fraction form
    3,556.31/5,334.76 = 1,215.61/x
  3. Step 3: Cross multiply
    3,556.31x = 5,334.76 × 1,215.61
  4. Step 4: Simplify right side
    3,556.31x = 6,484,975.79
  5. Step 5: Solve for x
    x = 6,484,975.79/3,556.31
  6. Step 6: Final answer
    x = 1,823.52

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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.