Home / 3,679.43-5,079.44-2,421.29

Finding the Fourth Proportional to 3,679.43, 5,079.44 and 2,421.29

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Solution

The fourth proportional to 3,679.43, 5,079.44 and 2,421.29 is: 3,342.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.43 : 5,079.44 = 2,421.29 : x
  2. Step 2: Convert to fraction form
    3,679.43/5,079.44 = 2,421.29/x
  3. Step 3: Cross multiply
    3,679.43x = 5,079.44 × 2,421.29
  4. Step 4: Simplify right side
    3,679.43x = 12,298,816.03
  5. Step 5: Solve for x
    x = 12,298,816.03/3,679.43
  6. Step 6: Final answer
    x = 3,342.59

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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.