Home / 6,861.68-10,289.28-2,699.36

Finding the Fourth Proportional to 6,861.68, 10,289.28 and 2,699.36

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Solution

The fourth proportional to 6,861.68, 10,289.28 and 2,699.36 is: 4,047.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.68 : 10,289.28 = 2,699.36 : x
  2. Step 2: Convert to fraction form
    6,861.68/10,289.28 = 2,699.36/x
  3. Step 3: Cross multiply
    6,861.68x = 10,289.28 × 2,699.36
  4. Step 4: Simplify right side
    6,861.68x = 27,774,470.86
  5. Step 5: Solve for x
    x = 27,774,470.86/6,861.68
  6. Step 6: Final answer
    x = 4,047.77

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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.