Home / 2,768.06-4,150.36-918.70

Finding the Fourth Proportional to 2,768.06, 4,150.36 and 918.70

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Solution

The fourth proportional to 2,768.06, 4,150.36 and 918.70 is: 1,377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.06 : 4,150.36 = 918.70 : x
  2. Step 2: Convert to fraction form
    2,768.06/4,150.36 = 918.70/x
  3. Step 3: Cross multiply
    2,768.06x = 4,150.36 × 918.70
  4. Step 4: Simplify right side
    2,768.06x = 3,812,935.73
  5. Step 5: Solve for x
    x = 3,812,935.73/2,768.06
  6. Step 6: Final answer
    x = 1,377.48

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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.