Home / 1,540.68-2,320.20-1,396.09

Finding the Fourth Proportional to 1,540.68, 2,320.20 and 1,396.09

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Solution

The fourth proportional to 1,540.68, 2,320.20 and 1,396.09 is: 2,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.68 : 2,320.20 = 1,396.09 : x
  2. Step 2: Convert to fraction form
    1,540.68/2,320.20 = 1,396.09/x
  3. Step 3: Cross multiply
    1,540.68x = 2,320.20 × 1,396.09
  4. Step 4: Simplify right side
    1,540.68x = 3,239,208.02
  5. Step 5: Solve for x
    x = 3,239,208.02/1,540.68
  6. Step 6: Final answer
    x = 2,102.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.