Home / 2,855.25-4,284.90-1,623.65

Finding the Fourth Proportional to 2,855.25, 4,284.90 and 1,623.65

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Solution

The fourth proportional to 2,855.25, 4,284.90 and 1,623.65 is: 2,436.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.25 : 4,284.90 = 1,623.65 : x
  2. Step 2: Convert to fraction form
    2,855.25/4,284.90 = 1,623.65/x
  3. Step 3: Cross multiply
    2,855.25x = 4,284.90 × 1,623.65
  4. Step 4: Simplify right side
    2,855.25x = 6,957,156.46
  5. Step 5: Solve for x
    x = 6,957,156.46/2,855.25
  6. Step 6: Final answer
    x = 2,436.62

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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.