Home / 3,075.88-4,249.38-2,147.08

Finding the Fourth Proportional to 3,075.88, 4,249.38 and 2,147.08

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Solution

The fourth proportional to 3,075.88, 4,249.38 and 2,147.08 is: 2,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.88 : 4,249.38 = 2,147.08 : x
  2. Step 2: Convert to fraction form
    3,075.88/4,249.38 = 2,147.08/x
  3. Step 3: Cross multiply
    3,075.88x = 4,249.38 × 2,147.08
  4. Step 4: Simplify right side
    3,075.88x = 9,123,758.81
  5. Step 5: Solve for x
    x = 9,123,758.81/3,075.88
  6. Step 6: Final answer
    x = 2,966.23

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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.