Home / 3,478.04-5,220.72-3,399.68

Finding the Fourth Proportional to 3,478.04, 5,220.72 and 3,399.68

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Solution

The fourth proportional to 3,478.04, 5,220.72 and 3,399.68 is: 5,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.04 : 5,220.72 = 3,399.68 : x
  2. Step 2: Convert to fraction form
    3,478.04/5,220.72 = 3,399.68/x
  3. Step 3: Cross multiply
    3,478.04x = 5,220.72 × 3,399.68
  4. Step 4: Simplify right side
    3,478.04x = 17,748,777.37
  5. Step 5: Solve for x
    x = 17,748,777.37/3,478.04
  6. Step 6: Final answer
    x = 5,103.10

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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.