Home / 3,342.20-5,012.99-2,620.49

Finding the Fourth Proportional to 3,342.20, 5,012.99 and 2,620.49

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Solution

The fourth proportional to 3,342.20, 5,012.99 and 2,620.49 is: 3,930.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.20 : 5,012.99 = 2,620.49 : x
  2. Step 2: Convert to fraction form
    3,342.20/5,012.99 = 2,620.49/x
  3. Step 3: Cross multiply
    3,342.20x = 5,012.99 × 2,620.49
  4. Step 4: Simplify right side
    3,342.20x = 13,136,461.82
  5. Step 5: Solve for x
    x = 13,136,461.82/3,342.20
  6. Step 6: Final answer
    x = 3,930.49

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1.5x scale

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.