Home / 3,081.24-4,623.38-1,621.42

Finding the Fourth Proportional to 3,081.24, 4,623.38 and 1,621.42

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Solution

The fourth proportional to 3,081.24, 4,623.38 and 1,621.42 is: 2,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.24 : 4,623.38 = 1,621.42 : x
  2. Step 2: Convert to fraction form
    3,081.24/4,623.38 = 1,621.42/x
  3. Step 3: Cross multiply
    3,081.24x = 4,623.38 × 1,621.42
  4. Step 4: Simplify right side
    3,081.24x = 7,496,427.21
  5. Step 5: Solve for x
    x = 7,496,427.21/3,081.24
  6. Step 6: Final answer
    x = 2,432.93

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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.