Home / 2,529.20-3,491.16-2,183.60

Finding the Fourth Proportional to 2,529.20, 3,491.16 and 2,183.60

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Solution

The fourth proportional to 2,529.20, 3,491.16 and 2,183.60 is: 3,014.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.20 : 3,491.16 = 2,183.60 : x
  2. Step 2: Convert to fraction form
    2,529.20/3,491.16 = 2,183.60/x
  3. Step 3: Cross multiply
    2,529.20x = 3,491.16 × 2,183.60
  4. Step 4: Simplify right side
    2,529.20x = 7,623,296.98
  5. Step 5: Solve for x
    x = 7,623,296.98/2,529.20
  6. Step 6: Final answer
    x = 3,014.11

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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.