Home / 2,103.45-3,155.19-716.82

Finding the Fourth Proportional to 2,103.45, 3,155.19 and 716.82

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Solution

The fourth proportional to 2,103.45, 3,155.19 and 716.82 is: 1,075.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.45 : 3,155.19 = 716.82 : x
  2. Step 2: Convert to fraction form
    2,103.45/3,155.19 = 716.82/x
  3. Step 3: Cross multiply
    2,103.45x = 3,155.19 × 716.82
  4. Step 4: Simplify right side
    2,103.45x = 2,261,703.30
  5. Step 5: Solve for x
    x = 2,261,703.30/2,103.45
  6. Step 6: Final answer
    x = 1,075.24

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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.