Home / 3,485.20-5,228.10-1,144.50

Finding the Fourth Proportional to 3,485.20, 5,228.10 and 1,144.50

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Solution

The fourth proportional to 3,485.20, 5,228.10 and 1,144.50 is: 1,716.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.20 : 5,228.10 = 1,144.50 : x
  2. Step 2: Convert to fraction form
    3,485.20/5,228.10 = 1,144.50/x
  3. Step 3: Cross multiply
    3,485.20x = 5,228.10 × 1,144.50
  4. Step 4: Simplify right side
    3,485.20x = 5,983,560.45
  5. Step 5: Solve for x
    x = 5,983,560.45/3,485.20
  6. Step 6: Final answer
    x = 1,716.85

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Double scale
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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.