Home / 3,926.80-5,418.33-2,602.30

Finding the Fourth Proportional to 3,926.80, 5,418.33 and 2,602.30

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Solution

The fourth proportional to 3,926.80, 5,418.33 and 2,602.30 is: 3,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.80 : 5,418.33 = 2,602.30 : x
  2. Step 2: Convert to fraction form
    3,926.80/5,418.33 = 2,602.30/x
  3. Step 3: Cross multiply
    3,926.80x = 5,418.33 × 2,602.30
  4. Step 4: Simplify right side
    3,926.80x = 14,100,120.16
  5. Step 5: Solve for x
    x = 14,100,120.16/3,926.80
  6. Step 6: Final answer
    x = 3,590.74

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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.