Home / 7,150.91-10,727.78-2,768.40

Finding the Fourth Proportional to 7,150.91, 10,727.78 and 2,768.40

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Solution

The fourth proportional to 7,150.91, 10,727.78 and 2,768.40 is: 4,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.91 : 10,727.78 = 2,768.40 : x
  2. Step 2: Convert to fraction form
    7,150.91/10,727.78 = 2,768.40/x
  3. Step 3: Cross multiply
    7,150.91x = 10,727.78 × 2,768.40
  4. Step 4: Simplify right side
    7,150.91x = 29,698,772.31
  5. Step 5: Solve for x
    x = 29,698,772.31/7,150.91
  6. Step 6: Final answer
    x = 4,153.15

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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.