Home / 7,168.34-10,748.40-2,780.66

Finding the Fourth Proportional to 7,168.34, 10,748.40 and 2,780.66

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Solution

The fourth proportional to 7,168.34, 10,748.40 and 2,780.66 is: 4,169.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.34 : 10,748.40 = 2,780.66 : x
  2. Step 2: Convert to fraction form
    7,168.34/10,748.40 = 2,780.66/x
  3. Step 3: Cross multiply
    7,168.34x = 10,748.40 × 2,780.66
  4. Step 4: Simplify right side
    7,168.34x = 29,887,592.20
  5. Step 5: Solve for x
    x = 29,887,592.20/7,168.34
  6. Step 6: Final answer
    x = 4,169.39

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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.