Home / 5,329.65-7,355.08-2,939.69

Finding the Fourth Proportional to 5,329.65, 7,355.08 and 2,939.69

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Solution

The fourth proportional to 5,329.65, 7,355.08 and 2,939.69 is: 4,056.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.65 : 7,355.08 = 2,939.69 : x
  2. Step 2: Convert to fraction form
    5,329.65/7,355.08 = 2,939.69/x
  3. Step 3: Cross multiply
    5,329.65x = 7,355.08 × 2,939.69
  4. Step 4: Simplify right side
    5,329.65x = 21,621,660.65
  5. Step 5: Solve for x
    x = 21,621,660.65/5,329.65
  6. Step 6: Final answer
    x = 4,056.86

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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.