Home / 2,940.30-4,410.45-2,891.70

Finding the Fourth Proportional to 2,940.30, 4,410.45 and 2,891.70

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Solution

The fourth proportional to 2,940.30, 4,410.45 and 2,891.70 is: 4,337.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.30 : 4,410.45 = 2,891.70 : x
  2. Step 2: Convert to fraction form
    2,940.30/4,410.45 = 2,891.70/x
  3. Step 3: Cross multiply
    2,940.30x = 4,410.45 × 2,891.70
  4. Step 4: Simplify right side
    2,940.30x = 12,753,698.27
  5. Step 5: Solve for x
    x = 12,753,698.27/2,940.30
  6. Step 6: Final answer
    x = 4,337.55

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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.