Home / 7,160.28-10,740.42-1,966.56

Finding the Fourth Proportional to 7,160.28, 10,740.42 and 1,966.56

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Solution

The fourth proportional to 7,160.28, 10,740.42 and 1,966.56 is: 2,949.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.28 : 10,740.42 = 1,966.56 : x
  2. Step 2: Convert to fraction form
    7,160.28/10,740.42 = 1,966.56/x
  3. Step 3: Cross multiply
    7,160.28x = 10,740.42 × 1,966.56
  4. Step 4: Simplify right side
    7,160.28x = 21,121,680.36
  5. Step 5: Solve for x
    x = 21,121,680.36/7,160.28
  6. Step 6: Final answer
    x = 2,949.84

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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.