Home / 2,228.18-3,075.51-1,296.68

Finding the Fourth Proportional to 2,228.18, 3,075.51 and 1,296.68

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Solution

The fourth proportional to 2,228.18, 3,075.51 and 1,296.68 is: 1,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.18 : 3,075.51 = 1,296.68 : x
  2. Step 2: Convert to fraction form
    2,228.18/3,075.51 = 1,296.68/x
  3. Step 3: Cross multiply
    2,228.18x = 3,075.51 × 1,296.68
  4. Step 4: Simplify right side
    2,228.18x = 3,987,952.31
  5. Step 5: Solve for x
    x = 3,987,952.31/2,228.18
  6. Step 6: Final answer
    x = 1,789.78

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1.5x scale

Why These Related Problems?

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