Home / 7,128.74-10,697.70-3,844.13

Finding the Fourth Proportional to 7,128.74, 10,697.70 and 3,844.13

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Solution

The fourth proportional to 7,128.74, 10,697.70 and 3,844.13 is: 5,768.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.74 : 10,697.70 = 3,844.13 : x
  2. Step 2: Convert to fraction form
    7,128.74/10,697.70 = 3,844.13/x
  3. Step 3: Cross multiply
    7,128.74x = 10,697.70 × 3,844.13
  4. Step 4: Simplify right side
    7,128.74x = 41,123,296.01
  5. Step 5: Solve for x
    x = 41,123,296.01/7,128.74
  6. Step 6: Final answer
    x = 5,768.67

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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.