Home / 5,118.14-7,062.78-3,132.02

Finding the Fourth Proportional to 5,118.14, 7,062.78 and 3,132.02

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Solution

The fourth proportional to 5,118.14, 7,062.78 and 3,132.02 is: 4,322.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.14 : 7,062.78 = 3,132.02 : x
  2. Step 2: Convert to fraction form
    5,118.14/7,062.78 = 3,132.02/x
  3. Step 3: Cross multiply
    5,118.14x = 7,062.78 × 3,132.02
  4. Step 4: Simplify right side
    5,118.14x = 22,120,768.22
  5. Step 5: Solve for x
    x = 22,120,768.22/5,118.14
  6. Step 6: Final answer
    x = 4,322.03

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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.