Home / 2,621.58-3,618.99-1,960.62

Finding the Fourth Proportional to 2,621.58, 3,618.99 and 1,960.62

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Solution

The fourth proportional to 2,621.58, 3,618.99 and 1,960.62 is: 2,706.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.58 : 3,618.99 = 1,960.62 : x
  2. Step 2: Convert to fraction form
    2,621.58/3,618.99 = 1,960.62/x
  3. Step 3: Cross multiply
    2,621.58x = 3,618.99 × 1,960.62
  4. Step 4: Simplify right side
    2,621.58x = 7,095,464.17
  5. Step 5: Solve for x
    x = 7,095,464.17/2,621.58
  6. Step 6: Final answer
    x = 2,706.56

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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.