Home / 7,145.19-10,717.37-2,147.46

Finding the Fourth Proportional to 7,145.19, 10,717.37 and 2,147.46

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Solution

The fourth proportional to 7,145.19, 10,717.37 and 2,147.46 is: 3,221.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.19 : 10,717.37 = 2,147.46 : x
  2. Step 2: Convert to fraction form
    7,145.19/10,717.37 = 2,147.46/x
  3. Step 3: Cross multiply
    7,145.19x = 10,717.37 × 2,147.46
  4. Step 4: Simplify right side
    7,145.19x = 23,015,069.79
  5. Step 5: Solve for x
    x = 23,015,069.79/7,145.19
  6. Step 6: Final answer
    x = 3,221.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.