Home / 4,265.20-6,390.60-3,530.80

Finding the Fourth Proportional to 4,265.20, 6,390.60 and 3,530.80

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Solution

The fourth proportional to 4,265.20, 6,390.60 and 3,530.80 is: 5,290.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,265.20 : 6,390.60 = 3,530.80 : x
  2. Step 2: Convert to fraction form
    4,265.20/6,390.60 = 3,530.80/x
  3. Step 3: Cross multiply
    4,265.20x = 6,390.60 × 3,530.80
  4. Step 4: Simplify right side
    4,265.20x = 22,563,930.48
  5. Step 5: Solve for x
    x = 22,563,930.48/4,265.20
  6. Step 6: Final answer
    x = 5,290.24

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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.