Home / 3,220.90-4,831.38-1,029.58

Finding the Fourth Proportional to 3,220.90, 4,831.38 and 1,029.58

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Solution

The fourth proportional to 3,220.90, 4,831.38 and 1,029.58 is: 1,544.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.90 : 4,831.38 = 1,029.58 : x
  2. Step 2: Convert to fraction form
    3,220.90/4,831.38 = 1,029.58/x
  3. Step 3: Cross multiply
    3,220.90x = 4,831.38 × 1,029.58
  4. Step 4: Simplify right side
    3,220.90x = 4,974,280.14
  5. Step 5: Solve for x
    x = 4,974,280.14/3,220.90
  6. Step 6: Final answer
    x = 1,544.38

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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.