Home / 6,621.20-9,131.16-4,499.92

Finding the Fourth Proportional to 6,621.20, 9,131.16 and 4,499.92

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Solution

The fourth proportional to 6,621.20, 9,131.16 and 4,499.92 is: 6,205.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.20 : 9,131.16 = 4,499.92 : x
  2. Step 2: Convert to fraction form
    6,621.20/9,131.16 = 4,499.92/x
  3. Step 3: Cross multiply
    6,621.20x = 9,131.16 × 4,499.92
  4. Step 4: Simplify right side
    6,621.20x = 41,089,489.51
  5. Step 5: Solve for x
    x = 41,089,489.51/6,621.20
  6. Step 6: Final answer
    x = 6,205.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.