Home / 5,120.54-7,066.87-3,132.41

Finding the Fourth Proportional to 5,120.54, 7,066.87 and 3,132.41

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Solution

The fourth proportional to 5,120.54, 7,066.87 and 3,132.41 is: 4,323.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.54 : 7,066.87 = 3,132.41 : x
  2. Step 2: Convert to fraction form
    5,120.54/7,066.87 = 3,132.41/x
  3. Step 3: Cross multiply
    5,120.54x = 7,066.87 × 3,132.41
  4. Step 4: Simplify right side
    5,120.54x = 22,136,344.09
  5. Step 5: Solve for x
    x = 22,136,344.09/5,120.54
  6. Step 6: Final answer
    x = 4,323.05

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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.