Home / 5,120.37-7,066.20-3,132.02

Finding the Fourth Proportional to 5,120.37, 7,066.20 and 3,132.02

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Solution

The fourth proportional to 5,120.37, 7,066.20 and 3,132.02 is: 4,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.37 : 7,066.20 = 3,132.02 : x
  2. Step 2: Convert to fraction form
    5,120.37/7,066.20 = 3,132.02/x
  3. Step 3: Cross multiply
    5,120.37x = 7,066.20 × 3,132.02
  4. Step 4: Simplify right side
    5,120.37x = 22,131,479.72
  5. Step 5: Solve for x
    x = 22,131,479.72/5,120.37
  6. Step 6: Final answer
    x = 4,322.24

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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.