Home / 7,319.16-10,980.36-2,125.44

Finding the Fourth Proportional to 7,319.16, 10,980.36 and 2,125.44

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Solution

The fourth proportional to 7,319.16, 10,980.36 and 2,125.44 is: 3,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.16 : 10,980.36 = 2,125.44 : x
  2. Step 2: Convert to fraction form
    7,319.16/10,980.36 = 2,125.44/x
  3. Step 3: Cross multiply
    7,319.16x = 10,980.36 × 2,125.44
  4. Step 4: Simplify right side
    7,319.16x = 23,338,096.36
  5. Step 5: Solve for x
    x = 23,338,096.36/7,319.16
  6. Step 6: Final answer
    x = 3,188.63

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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.