Home / 5,221.85-7,830.47-2,446.28

Finding the Fourth Proportional to 5,221.85, 7,830.47 and 2,446.28

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Solution

The fourth proportional to 5,221.85, 7,830.47 and 2,446.28 is: 3,668.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.85 : 7,830.47 = 2,446.28 : x
  2. Step 2: Convert to fraction form
    5,221.85/7,830.47 = 2,446.28/x
  3. Step 3: Cross multiply
    5,221.85x = 7,830.47 × 2,446.28
  4. Step 4: Simplify right side
    5,221.85x = 19,155,562.53
  5. Step 5: Solve for x
    x = 19,155,562.53/5,221.85
  6. Step 6: Final answer
    x = 3,668.35

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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.