Home / 7,289.61-10,930.64-2,607.81

Finding the Fourth Proportional to 7,289.61, 10,930.64 and 2,607.81

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Solution

The fourth proportional to 7,289.61, 10,930.64 and 2,607.81 is: 3,910.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.61 : 10,930.64 = 2,607.81 : x
  2. Step 2: Convert to fraction form
    7,289.61/10,930.64 = 2,607.81/x
  3. Step 3: Cross multiply
    7,289.61x = 10,930.64 × 2,607.81
  4. Step 4: Simplify right side
    7,289.61x = 28,505,019.26
  5. Step 5: Solve for x
    x = 28,505,019.26/7,289.61
  6. Step 6: Final answer
    x = 3,910.36

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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.