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Finding the Fourth Proportional to 3,807.17, 5,711.21 and 1,341.48

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Solution

The fourth proportional to 3,807.17, 5,711.21 and 1,341.48 is: 2,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.17 : 5,711.21 = 1,341.48 : x
  2. Step 2: Convert to fraction form
    3,807.17/5,711.21 = 1,341.48/x
  3. Step 3: Cross multiply
    3,807.17x = 5,711.21 × 1,341.48
  4. Step 4: Simplify right side
    3,807.17x = 7,661,477.34
  5. Step 5: Solve for x
    x = 7,661,477.34/3,807.17
  6. Step 6: Final answer
    x = 2,012.38

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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.