Home / 3,420.05-5,116.41-2,962.80

Finding the Fourth Proportional to 3,420.05, 5,116.41 and 2,962.80

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Solution

The fourth proportional to 3,420.05, 5,116.41 and 2,962.80 is: 4,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.05 : 5,116.41 = 2,962.80 : x
  2. Step 2: Convert to fraction form
    3,420.05/5,116.41 = 2,962.80/x
  3. Step 3: Cross multiply
    3,420.05x = 5,116.41 × 2,962.80
  4. Step 4: Simplify right side
    3,420.05x = 15,158,899.55
  5. Step 5: Solve for x
    x = 15,158,899.55/3,420.05
  6. Step 6: Final answer
    x = 4,432.37

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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.