Home / 3,081.93-4,623.30-1,621.17

Finding the Fourth Proportional to 3,081.93, 4,623.30 and 1,621.17

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Solution

The fourth proportional to 3,081.93, 4,623.30 and 1,621.17 is: 2,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.93 : 4,623.30 = 1,621.17 : x
  2. Step 2: Convert to fraction form
    3,081.93/4,623.30 = 1,621.17/x
  3. Step 3: Cross multiply
    3,081.93x = 4,623.30 × 1,621.17
  4. Step 4: Simplify right side
    3,081.93x = 7,495,155.26
  5. Step 5: Solve for x
    x = 7,495,155.26/3,081.93
  6. Step 6: Final answer
    x = 2,431.97

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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.