Home / 2,637.78-3,640.35-1,519.08

Finding the Fourth Proportional to 2,637.78, 3,640.35 and 1,519.08

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Solution

The fourth proportional to 2,637.78, 3,640.35 and 1,519.08 is: 2,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.78 : 3,640.35 = 1,519.08 : x
  2. Step 2: Convert to fraction form
    2,637.78/3,640.35 = 1,519.08/x
  3. Step 3: Cross multiply
    2,637.78x = 3,640.35 × 1,519.08
  4. Step 4: Simplify right side
    2,637.78x = 5,529,982.88
  5. Step 5: Solve for x
    x = 5,529,982.88/2,637.78
  6. Step 6: Final answer
    x = 2,096.45

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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.