Home / 2,880.37-3,974.20-1,760.90

Finding the Fourth Proportional to 2,880.37, 3,974.20 and 1,760.90

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Solution

The fourth proportional to 2,880.37, 3,974.20 and 1,760.90 is: 2,429.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.37 : 3,974.20 = 1,760.90 : x
  2. Step 2: Convert to fraction form
    2,880.37/3,974.20 = 1,760.90/x
  3. Step 3: Cross multiply
    2,880.37x = 3,974.20 × 1,760.90
  4. Step 4: Simplify right side
    2,880.37x = 6,998,176.77
  5. Step 5: Solve for x
    x = 6,998,176.77/2,880.37
  6. Step 6: Final answer
    x = 2,429.61

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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.