Home / 3,615.60-5,423.40-3,469.80

Finding the Fourth Proportional to 3,615.60, 5,423.40 and 3,469.80

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Solution

The fourth proportional to 3,615.60, 5,423.40 and 3,469.80 is: 5,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.60 : 5,423.40 = 3,469.80 : x
  2. Step 2: Convert to fraction form
    3,615.60/5,423.40 = 3,469.80/x
  3. Step 3: Cross multiply
    3,615.60x = 5,423.40 × 3,469.80
  4. Step 4: Simplify right side
    3,615.60x = 18,818,113.32
  5. Step 5: Solve for x
    x = 18,818,113.32/3,615.60
  6. Step 6: Final answer
    x = 5,204.70

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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.