Home / 3,020.60-4,156.62-2,672.12

Finding the Fourth Proportional to 3,020.60, 4,156.62 and 2,672.12

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Solution

The fourth proportional to 3,020.60, 4,156.62 and 2,672.12 is: 3,677.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.60 : 4,156.62 = 2,672.12 : x
  2. Step 2: Convert to fraction form
    3,020.60/4,156.62 = 2,672.12/x
  3. Step 3: Cross multiply
    3,020.60x = 4,156.62 × 2,672.12
  4. Step 4: Simplify right side
    3,020.60x = 11,106,987.43
  5. Step 5: Solve for x
    x = 11,106,987.43/3,020.60
  6. Step 6: Final answer
    x = 3,677.08

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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.