Home / 3,621.12-4,991.32-2,440.14

Finding the Fourth Proportional to 3,621.12, 4,991.32 and 2,440.14

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Solution

The fourth proportional to 3,621.12, 4,991.32 and 2,440.14 is: 3,363.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.12 : 4,991.32 = 2,440.14 : x
  2. Step 2: Convert to fraction form
    3,621.12/4,991.32 = 2,440.14/x
  3. Step 3: Cross multiply
    3,621.12x = 4,991.32 × 2,440.14
  4. Step 4: Simplify right side
    3,621.12x = 12,179,519.58
  5. Step 5: Solve for x
    x = 12,179,519.58/3,621.12
  6. Step 6: Final answer
    x = 3,363.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.