Home / 5,213.52-7,821.80-1,704.18

Finding the Fourth Proportional to 5,213.52, 7,821.80 and 1,704.18

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Solution

The fourth proportional to 5,213.52, 7,821.80 and 1,704.18 is: 2,556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.52 : 7,821.80 = 1,704.18 : x
  2. Step 2: Convert to fraction form
    5,213.52/7,821.80 = 1,704.18/x
  3. Step 3: Cross multiply
    5,213.52x = 7,821.80 × 1,704.18
  4. Step 4: Simplify right side
    5,213.52x = 13,329,746.60
  5. Step 5: Solve for x
    x = 13,329,746.60/5,213.52
  6. Step 6: Final answer
    x = 2,556.77

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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.