Home / 3,220.34-4,831.26-1,028.90

Finding the Fourth Proportional to 3,220.34, 4,831.26 and 1,028.90

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Solution

The fourth proportional to 3,220.34, 4,831.26 and 1,028.90 is: 1,543.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.34 : 4,831.26 = 1,028.90 : x
  2. Step 2: Convert to fraction form
    3,220.34/4,831.26 = 1,028.90/x
  3. Step 3: Cross multiply
    3,220.34x = 4,831.26 × 1,028.90
  4. Step 4: Simplify right side
    3,220.34x = 4,970,883.41
  5. Step 5: Solve for x
    x = 4,970,883.41/3,220.34
  6. Step 6: Final answer
    x = 1,543.59

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1.5x scale

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.