Home / 5,395.86-8,091.67-2,621.72

Finding the Fourth Proportional to 5,395.86, 8,091.67 and 2,621.72

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Solution

The fourth proportional to 5,395.86, 8,091.67 and 2,621.72 is: 3,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,395.86 : 8,091.67 = 2,621.72 : x
  2. Step 2: Convert to fraction form
    5,395.86/8,091.67 = 2,621.72/x
  3. Step 3: Cross multiply
    5,395.86x = 8,091.67 × 2,621.72
  4. Step 4: Simplify right side
    5,395.86x = 21,214,046.06
  5. Step 5: Solve for x
    x = 21,214,046.06/5,395.86
  6. Step 6: Final answer
    x = 3,931.54

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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.