Home / 3,630.90-5,446.35-3,412.20

Finding the Fourth Proportional to 3,630.90, 5,446.35 and 3,412.20

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Solution

The fourth proportional to 3,630.90, 5,446.35 and 3,412.20 is: 5,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.90 : 5,446.35 = 3,412.20 : x
  2. Step 2: Convert to fraction form
    3,630.90/5,446.35 = 3,412.20/x
  3. Step 3: Cross multiply
    3,630.90x = 5,446.35 × 3,412.20
  4. Step 4: Simplify right side
    3,630.90x = 18,584,035.47
  5. Step 5: Solve for x
    x = 18,584,035.47/3,630.90
  6. Step 6: Final answer
    x = 5,118.30

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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.