Home / 2,880.96-4,318.20-2,229.72

Finding the Fourth Proportional to 2,880.96, 4,318.20 and 2,229.72

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Solution

The fourth proportional to 2,880.96, 4,318.20 and 2,229.72 is: 3,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.96 : 4,318.20 = 2,229.72 : x
  2. Step 2: Convert to fraction form
    2,880.96/4,318.20 = 2,229.72/x
  3. Step 3: Cross multiply
    2,880.96x = 4,318.20 × 2,229.72
  4. Step 4: Simplify right side
    2,880.96x = 9,628,376.90
  5. Step 5: Solve for x
    x = 9,628,376.90/2,880.96
  6. Step 6: Final answer
    x = 3,342.07

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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.