Home / 3,220.70-4,831.41-1,028.93

Finding the Fourth Proportional to 3,220.70, 4,831.41 and 1,028.93

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Solution

The fourth proportional to 3,220.70, 4,831.41 and 1,028.93 is: 1,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.70 : 4,831.41 = 1,028.93 : x
  2. Step 2: Convert to fraction form
    3,220.70/4,831.41 = 1,028.93/x
  3. Step 3: Cross multiply
    3,220.70x = 4,831.41 × 1,028.93
  4. Step 4: Simplify right side
    3,220.70x = 4,971,182.69
  5. Step 5: Solve for x
    x = 4,971,182.69/3,220.70
  6. Step 6: Final answer
    x = 1,543.51

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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.