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Finding the Fourth Proportional to 2,855.02, 4,275.79 and 1,974.24

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Solution

The fourth proportional to 2,855.02, 4,275.79 and 1,974.24 is: 2,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.02 : 4,275.79 = 1,974.24 : x
  2. Step 2: Convert to fraction form
    2,855.02/4,275.79 = 1,974.24/x
  3. Step 3: Cross multiply
    2,855.02x = 4,275.79 × 1,974.24
  4. Step 4: Simplify right side
    2,855.02x = 8,441,435.65
  5. Step 5: Solve for x
    x = 8,441,435.65/2,855.02
  6. Step 6: Final answer
    x = 2,956.70

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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.