Home / 2,618.08-3,921.99-1,520.14

Finding the Fourth Proportional to 2,618.08, 3,921.99 and 1,520.14

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Solution

The fourth proportional to 2,618.08, 3,921.99 and 1,520.14 is: 2,277.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.08 : 3,921.99 = 1,520.14 : x
  2. Step 2: Convert to fraction form
    2,618.08/3,921.99 = 1,520.14/x
  3. Step 3: Cross multiply
    2,618.08x = 3,921.99 × 1,520.14
  4. Step 4: Simplify right side
    2,618.08x = 5,961,973.88
  5. Step 5: Solve for x
    x = 5,961,973.88/2,618.08
  6. Step 6: Final answer
    x = 2,277.23

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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.