Home / 3,168.96-4,753.28-1,089.15

Finding the Fourth Proportional to 3,168.96, 4,753.28 and 1,089.15

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Solution

The fourth proportional to 3,168.96, 4,753.28 and 1,089.15 is: 1,633.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.96 : 4,753.28 = 1,089.15 : x
  2. Step 2: Convert to fraction form
    3,168.96/4,753.28 = 1,089.15/x
  3. Step 3: Cross multiply
    3,168.96x = 4,753.28 × 1,089.15
  4. Step 4: Simplify right side
    3,168.96x = 5,177,029.47
  5. Step 5: Solve for x
    x = 5,177,029.47/3,168.96
  6. Step 6: Final answer
    x = 1,633.67

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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.