Home / 3,119.20-4,677.90-2,570.02

Finding the Fourth Proportional to 3,119.20, 4,677.90 and 2,570.02

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Solution

The fourth proportional to 3,119.20, 4,677.90 and 2,570.02 is: 3,854.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.20 : 4,677.90 = 2,570.02 : x
  2. Step 2: Convert to fraction form
    3,119.20/4,677.90 = 2,570.02/x
  3. Step 3: Cross multiply
    3,119.20x = 4,677.90 × 2,570.02
  4. Step 4: Simplify right side
    3,119.20x = 12,022,296.56
  5. Step 5: Solve for x
    x = 12,022,296.56/3,119.20
  6. Step 6: Final answer
    x = 3,854.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.