Home / 3,081.22-4,621-1,436.16

Finding the Fourth Proportional to 3,081.22, 4,621 and 1,436.16

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Solution

The fourth proportional to 3,081.22, 4,621 and 1,436.16 is: 2,153.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.22 : 4,621 = 1,436.16 : x
  2. Step 2: Convert to fraction form
    3,081.22/4,621 = 1,436.16/x
  3. Step 3: Cross multiply
    3,081.22x = 4,621 × 1,436.16
  4. Step 4: Simplify right side
    3,081.22x = 6,636,495.36
  5. Step 5: Solve for x
    x = 6,636,495.36/3,081.22
  6. Step 6: Final answer
    x = 2,153.85

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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.