Home / 3,220.75-4,830.97-1,887.28

Finding the Fourth Proportional to 3,220.75, 4,830.97 and 1,887.28

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Solution

The fourth proportional to 3,220.75, 4,830.97 and 1,887.28 is: 2,830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.75 : 4,830.97 = 1,887.28 : x
  2. Step 2: Convert to fraction form
    3,220.75/4,830.97 = 1,887.28/x
  3. Step 3: Cross multiply
    3,220.75x = 4,830.97 × 1,887.28
  4. Step 4: Simplify right side
    3,220.75x = 9,117,401.67
  5. Step 5: Solve for x
    x = 9,117,401.67/3,220.75
  6. Step 6: Final answer
    x = 2,830.84

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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.