Home / 2,139.35-2,952.21-1,195.12

Finding the Fourth Proportional to 2,139.35, 2,952.21 and 1,195.12

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Solution

The fourth proportional to 2,139.35, 2,952.21 and 1,195.12 is: 1,649.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139.35 : 2,952.21 = 1,195.12 : x
  2. Step 2: Convert to fraction form
    2,139.35/2,952.21 = 1,195.12/x
  3. Step 3: Cross multiply
    2,139.35x = 2,952.21 × 1,195.12
  4. Step 4: Simplify right side
    2,139.35x = 3,528,239.24
  5. Step 5: Solve for x
    x = 3,528,239.24/2,139.35
  6. Step 6: Final answer
    x = 1,649.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.