Home / 2,621.62-3,618.30-1,573.75

Finding the Fourth Proportional to 2,621.62, 3,618.30 and 1,573.75

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Solution

The fourth proportional to 2,621.62, 3,618.30 and 1,573.75 is: 2,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.62 : 3,618.30 = 1,573.75 : x
  2. Step 2: Convert to fraction form
    2,621.62/3,618.30 = 1,573.75/x
  3. Step 3: Cross multiply
    2,621.62x = 3,618.30 × 1,573.75
  4. Step 4: Simplify right side
    2,621.62x = 5,694,299.63
  5. Step 5: Solve for x
    x = 5,694,299.63/2,621.62
  6. Step 6: Final answer
    x = 2,172.05

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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.