Home / 1,371.11-2,056.92-713.30

Finding the Fourth Proportional to 1,371.11, 2,056.92 and 713.30

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Solution

The fourth proportional to 1,371.11, 2,056.92 and 713.30 is: 1,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.11 : 2,056.92 = 713.30 : x
  2. Step 2: Convert to fraction form
    1,371.11/2,056.92 = 713.30/x
  3. Step 3: Cross multiply
    1,371.11x = 2,056.92 × 713.30
  4. Step 4: Simplify right side
    1,371.11x = 1,467,190.75
  5. Step 5: Solve for x
    x = 1,467,190.75/1,371.11
  6. Step 6: Final answer
    x = 1,070.08

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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.