Home / 2,276.91-3,121.66-2,235.40

Finding the Fourth Proportional to 2,276.91, 3,121.66 and 2,235.40

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Solution

The fourth proportional to 2,276.91, 3,121.66 and 2,235.40 is: 3,064.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.91 : 3,121.66 = 2,235.40 : x
  2. Step 2: Convert to fraction form
    2,276.91/3,121.66 = 2,235.40/x
  3. Step 3: Cross multiply
    2,276.91x = 3,121.66 × 2,235.40
  4. Step 4: Simplify right side
    2,276.91x = 6,978,141.18
  5. Step 5: Solve for x
    x = 6,978,141.18/2,276.91
  6. Step 6: Final answer
    x = 3,064.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.