Home / 7,108.13-10,660.46-3,157.21

Finding the Fourth Proportional to 7,108.13, 10,660.46 and 3,157.21

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Solution

The fourth proportional to 7,108.13, 10,660.46 and 3,157.21 is: 4,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.13 : 10,660.46 = 3,157.21 : x
  2. Step 2: Convert to fraction form
    7,108.13/10,660.46 = 3,157.21/x
  3. Step 3: Cross multiply
    7,108.13x = 10,660.46 × 3,157.21
  4. Step 4: Simplify right side
    7,108.13x = 33,657,295.13
  5. Step 5: Solve for x
    x = 33,657,295.13/7,108.13
  6. Step 6: Final answer
    x = 4,735.04

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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.