Home / 6,190.76-9,286.32-2,905.40

Finding the Fourth Proportional to 6,190.76, 9,286.32 and 2,905.40

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Solution

The fourth proportional to 6,190.76, 9,286.32 and 2,905.40 is: 4,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,190.76 : 9,286.32 = 2,905.40 : x
  2. Step 2: Convert to fraction form
    6,190.76/9,286.32 = 2,905.40/x
  3. Step 3: Cross multiply
    6,190.76x = 9,286.32 × 2,905.40
  4. Step 4: Simplify right side
    6,190.76x = 26,980,474.13
  5. Step 5: Solve for x
    x = 26,980,474.13/6,190.76
  6. Step 6: Final answer
    x = 4,358.18

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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.