Home / 7,129.74-10,693.66-2,199.28

Finding the Fourth Proportional to 7,129.74, 10,693.66 and 2,199.28

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Solution

The fourth proportional to 7,129.74, 10,693.66 and 2,199.28 is: 3,298.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.74 : 10,693.66 = 2,199.28 : x
  2. Step 2: Convert to fraction form
    7,129.74/10,693.66 = 2,199.28/x
  3. Step 3: Cross multiply
    7,129.74x = 10,693.66 × 2,199.28
  4. Step 4: Simplify right side
    7,129.74x = 23,518,352.56
  5. Step 5: Solve for x
    x = 23,518,352.56/7,129.74
  6. Step 6: Final answer
    x = 3,298.63

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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.