Home / 10,100.76-15,151.41-2,705.22

Finding the Fourth Proportional to 10,100.76, 15,151.41 and 2,705.22

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Solution

The fourth proportional to 10,100.76, 15,151.41 and 2,705.22 is: 4,057.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.76 : 15,151.41 = 2,705.22 : x
  2. Step 2: Convert to fraction form
    10,100.76/15,151.41 = 2,705.22/x
  3. Step 3: Cross multiply
    10,100.76x = 15,151.41 × 2,705.22
  4. Step 4: Simplify right side
    10,100.76x = 40,987,897.36
  5. Step 5: Solve for x
    x = 40,987,897.36/10,100.76
  6. Step 6: Final answer
    x = 4,057.90

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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.