Home / 7,190.40-10,787.13-4,071.87

Finding the Fourth Proportional to 7,190.40, 10,787.13 and 4,071.87

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Solution

The fourth proportional to 7,190.40, 10,787.13 and 4,071.87 is: 6,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.40 : 10,787.13 = 4,071.87 : x
  2. Step 2: Convert to fraction form
    7,190.40/10,787.13 = 4,071.87/x
  3. Step 3: Cross multiply
    7,190.40x = 10,787.13 × 4,071.87
  4. Step 4: Simplify right side
    7,190.40x = 43,923,791.03
  5. Step 5: Solve for x
    x = 43,923,791.03/7,190.40
  6. Step 6: Final answer
    x = 6,108.67

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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.