Home / 7,484.80-11,216.76-3,782.71

Finding the Fourth Proportional to 7,484.80, 11,216.76 and 3,782.71

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Solution

The fourth proportional to 7,484.80, 11,216.76 and 3,782.71 is: 5,668.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.80 : 11,216.76 = 3,782.71 : x
  2. Step 2: Convert to fraction form
    7,484.80/11,216.76 = 3,782.71/x
  3. Step 3: Cross multiply
    7,484.80x = 11,216.76 × 3,782.71
  4. Step 4: Simplify right side
    7,484.80x = 42,429,722.18
  5. Step 5: Solve for x
    x = 42,429,722.18/7,484.80
  6. Step 6: Final answer
    x = 5,668.79

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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.