Home / 3,080.39-4,621.39-1,436.09

Finding the Fourth Proportional to 3,080.39, 4,621.39 and 1,436.09

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Solution

The fourth proportional to 3,080.39, 4,621.39 and 1,436.09 is: 2,154.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.39 : 4,621.39 = 1,436.09 : x
  2. Step 2: Convert to fraction form
    3,080.39/4,621.39 = 1,436.09/x
  3. Step 3: Cross multiply
    3,080.39x = 4,621.39 × 1,436.09
  4. Step 4: Simplify right side
    3,080.39x = 6,636,705.27
  5. Step 5: Solve for x
    x = 6,636,705.27/3,080.39
  6. Step 6: Final answer
    x = 2,154.51

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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.