Home / 3,730.20-5,556.60-3,643.80

Finding the Fourth Proportional to 3,730.20, 5,556.60 and 3,643.80

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Solution

The fourth proportional to 3,730.20, 5,556.60 and 3,643.80 is: 5,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.20 : 5,556.60 = 3,643.80 : x
  2. Step 2: Convert to fraction form
    3,730.20/5,556.60 = 3,643.80/x
  3. Step 3: Cross multiply
    3,730.20x = 5,556.60 × 3,643.80
  4. Step 4: Simplify right side
    3,730.20x = 20,247,139.08
  5. Step 5: Solve for x
    x = 20,247,139.08/3,730.20
  6. Step 6: Final answer
    x = 5,427.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.