Home / 2,540.08-3,505.44-1,421.02

Finding the Fourth Proportional to 2,540.08, 3,505.44 and 1,421.02

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Solution

The fourth proportional to 2,540.08, 3,505.44 and 1,421.02 is: 1,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.08 : 3,505.44 = 1,421.02 : x
  2. Step 2: Convert to fraction form
    2,540.08/3,505.44 = 1,421.02/x
  3. Step 3: Cross multiply
    2,540.08x = 3,505.44 × 1,421.02
  4. Step 4: Simplify right side
    2,540.08x = 4,981,300.35
  5. Step 5: Solve for x
    x = 4,981,300.35/2,540.08
  6. Step 6: Final answer
    x = 1,961.08

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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.