Home / 2,880.18-4,320.24-1,906.05

Finding the Fourth Proportional to 2,880.18, 4,320.24 and 1,906.05

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Solution

The fourth proportional to 2,880.18, 4,320.24 and 1,906.05 is: 2,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.18 : 4,320.24 = 1,906.05 : x
  2. Step 2: Convert to fraction form
    2,880.18/4,320.24 = 1,906.05/x
  3. Step 3: Cross multiply
    2,880.18x = 4,320.24 × 1,906.05
  4. Step 4: Simplify right side
    2,880.18x = 8,234,593.45
  5. Step 5: Solve for x
    x = 8,234,593.45/2,880.18
  6. Step 6: Final answer
    x = 2,859.06

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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.