Home / 6,121.67-8,448.59-3,731.77

Finding the Fourth Proportional to 6,121.67, 8,448.59 and 3,731.77

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Solution

The fourth proportional to 6,121.67, 8,448.59 and 3,731.77 is: 5,150.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.67 : 8,448.59 = 3,731.77 : x
  2. Step 2: Convert to fraction form
    6,121.67/8,448.59 = 3,731.77/x
  3. Step 3: Cross multiply
    6,121.67x = 8,448.59 × 3,731.77
  4. Step 4: Simplify right side
    6,121.67x = 31,528,133.80
  5. Step 5: Solve for x
    x = 31,528,133.80/6,121.67
  6. Step 6: Final answer
    x = 5,150.25

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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.