Home / 5,168.37-7,132.79-2,899.67

Finding the Fourth Proportional to 5,168.37, 7,132.79 and 2,899.67

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Solution

The fourth proportional to 5,168.37, 7,132.79 and 2,899.67 is: 4,001.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.37 : 7,132.79 = 2,899.67 : x
  2. Step 2: Convert to fraction form
    5,168.37/7,132.79 = 2,899.67/x
  3. Step 3: Cross multiply
    5,168.37x = 7,132.79 × 2,899.67
  4. Step 4: Simplify right side
    5,168.37x = 20,682,708.76
  5. Step 5: Solve for x
    x = 20,682,708.76/5,168.37
  6. Step 6: Final answer
    x = 4,001.78

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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.