Home / 7,178.91-10,774.86-3,021.99

Finding the Fourth Proportional to 7,178.91, 10,774.86 and 3,021.99

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Solution

The fourth proportional to 7,178.91, 10,774.86 and 3,021.99 is: 4,535.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.91 : 10,774.86 = 3,021.99 : x
  2. Step 2: Convert to fraction form
    7,178.91/10,774.86 = 3,021.99/x
  3. Step 3: Cross multiply
    7,178.91x = 10,774.86 × 3,021.99
  4. Step 4: Simplify right side
    7,178.91x = 32,561,519.17
  5. Step 5: Solve for x
    x = 32,561,519.17/7,178.91
  6. Step 6: Final answer
    x = 4,535.72

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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.