Home / 3,478.02-5,220.70-3,399.66

Finding the Fourth Proportional to 3,478.02, 5,220.70 and 3,399.66

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Solution

The fourth proportional to 3,478.02, 5,220.70 and 3,399.66 is: 5,103.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.02 : 5,220.70 = 3,399.66 : x
  2. Step 2: Convert to fraction form
    3,478.02/5,220.70 = 3,399.66/x
  3. Step 3: Cross multiply
    3,478.02x = 5,220.70 × 3,399.66
  4. Step 4: Simplify right side
    3,478.02x = 17,748,604.96
  5. Step 5: Solve for x
    x = 17,748,604.96/3,478.02
  6. Step 6: Final answer
    x = 5,103.08

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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.