Home / 6,105.76-9,155.40-2,986.32

Finding the Fourth Proportional to 6,105.76, 9,155.40 and 2,986.32

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Solution

The fourth proportional to 6,105.76, 9,155.40 and 2,986.32 is: 4,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,105.76 : 9,155.40 = 2,986.32 : x
  2. Step 2: Convert to fraction form
    6,105.76/9,155.40 = 2,986.32/x
  3. Step 3: Cross multiply
    6,105.76x = 9,155.40 × 2,986.32
  4. Step 4: Simplify right side
    6,105.76x = 27,340,954.13
  5. Step 5: Solve for x
    x = 27,340,954.13/6,105.76
  6. Step 6: Final answer
    x = 4,477.90

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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.