Home / 1,394.05-2,099.23-1,031.39

Finding the Fourth Proportional to 1,394.05, 2,099.23 and 1,031.39

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Solution

The fourth proportional to 1,394.05, 2,099.23 and 1,031.39 is: 1,553.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.05 : 2,099.23 = 1,031.39 : x
  2. Step 2: Convert to fraction form
    1,394.05/2,099.23 = 1,031.39/x
  3. Step 3: Cross multiply
    1,394.05x = 2,099.23 × 1,031.39
  4. Step 4: Simplify right side
    1,394.05x = 2,165,119.67
  5. Step 5: Solve for x
    x = 2,165,119.67/1,394.05
  6. Step 6: Final answer
    x = 1,553.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.