Home / 3,903.75-5,385.65-2,224.85

Finding the Fourth Proportional to 3,903.75, 5,385.65 and 2,224.85

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Solution

The fourth proportional to 3,903.75, 5,385.65 and 2,224.85 is: 3,069.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.75 : 5,385.65 = 2,224.85 : x
  2. Step 2: Convert to fraction form
    3,903.75/5,385.65 = 2,224.85/x
  3. Step 3: Cross multiply
    3,903.75x = 5,385.65 × 2,224.85
  4. Step 4: Simplify right side
    3,903.75x = 11,982,225.35
  5. Step 5: Solve for x
    x = 11,982,225.35/3,903.75
  6. Step 6: Final answer
    x = 3,069.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.