Home / 5,299.65-7,313.70-2,909.79

Finding the Fourth Proportional to 5,299.65, 7,313.70 and 2,909.79

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Solution

The fourth proportional to 5,299.65, 7,313.70 and 2,909.79 is: 4,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.65 : 7,313.70 = 2,909.79 : x
  2. Step 2: Convert to fraction form
    5,299.65/7,313.70 = 2,909.79/x
  3. Step 3: Cross multiply
    5,299.65x = 7,313.70 × 2,909.79
  4. Step 4: Simplify right side
    5,299.65x = 21,281,331.12
  5. Step 5: Solve for x
    x = 21,281,331.12/5,299.65
  6. Step 6: Final answer
    x = 4,015.61

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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.