Home / 7,126.21-10,691.48-3,427.39

Finding the Fourth Proportional to 7,126.21, 10,691.48 and 3,427.39

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Solution

The fourth proportional to 7,126.21, 10,691.48 and 3,427.39 is: 5,142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.21 : 10,691.48 = 3,427.39 : x
  2. Step 2: Convert to fraction form
    7,126.21/10,691.48 = 3,427.39/x
  3. Step 3: Cross multiply
    7,126.21x = 10,691.48 × 3,427.39
  4. Step 4: Simplify right side
    7,126.21x = 36,643,871.64
  5. Step 5: Solve for x
    x = 36,643,871.64/7,126.21
  6. Step 6: Final answer
    x = 5,142.13

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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.