Home / 5,582.20-8,405.96-4,131.56

Finding the Fourth Proportional to 5,582.20, 8,405.96 and 4,131.56

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Solution

The fourth proportional to 5,582.20, 8,405.96 and 4,131.56 is: 6,221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,582.20 : 8,405.96 = 4,131.56 : x
  2. Step 2: Convert to fraction form
    5,582.20/8,405.96 = 4,131.56/x
  3. Step 3: Cross multiply
    5,582.20x = 8,405.96 × 4,131.56
  4. Step 4: Simplify right side
    5,582.20x = 34,729,728.10
  5. Step 5: Solve for x
    x = 34,729,728.10/5,582.20
  6. Step 6: Final answer
    x = 6,221.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.