Home / 5,299.76-7,313.78-2,909.83

Finding the Fourth Proportional to 5,299.76, 7,313.78 and 2,909.83

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Solution

The fourth proportional to 5,299.76, 7,313.78 and 2,909.83 is: 4,015.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.76 : 7,313.78 = 2,909.83 : x
  2. Step 2: Convert to fraction form
    5,299.76/7,313.78 = 2,909.83/x
  3. Step 3: Cross multiply
    5,299.76x = 7,313.78 × 2,909.83
  4. Step 4: Simplify right side
    5,299.76x = 21,281,838.17
  5. Step 5: Solve for x
    x = 21,281,838.17/5,299.76
  6. Step 6: Final answer
    x = 4,015.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.