Home / 7,315.78-10,972.70-2,933.30

Finding the Fourth Proportional to 7,315.78, 10,972.70 and 2,933.30

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Solution

The fourth proportional to 7,315.78, 10,972.70 and 2,933.30 is: 4,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.78 : 10,972.70 = 2,933.30 : x
  2. Step 2: Convert to fraction form
    7,315.78/10,972.70 = 2,933.30/x
  3. Step 3: Cross multiply
    7,315.78x = 10,972.70 × 2,933.30
  4. Step 4: Simplify right side
    7,315.78x = 32,186,220.91
  5. Step 5: Solve for x
    x = 32,186,220.91/7,315.78
  6. Step 6: Final answer
    x = 4,399.56

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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.