Home / 2,912.62-4,018.53-2,631.95

Finding the Fourth Proportional to 2,912.62, 4,018.53 and 2,631.95

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Solution

The fourth proportional to 2,912.62, 4,018.53 and 2,631.95 is: 3,631.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.62 : 4,018.53 = 2,631.95 : x
  2. Step 2: Convert to fraction form
    2,912.62/4,018.53 = 2,631.95/x
  3. Step 3: Cross multiply
    2,912.62x = 4,018.53 × 2,631.95
  4. Step 4: Simplify right side
    2,912.62x = 10,576,570.03
  5. Step 5: Solve for x
    x = 10,576,570.03/2,912.62
  6. Step 6: Final answer
    x = 3,631.29

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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.