Home / 2,281.95-3,147.48-2,205.75

Finding the Fourth Proportional to 2,281.95, 3,147.48 and 2,205.75

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Solution

The fourth proportional to 2,281.95, 3,147.48 and 2,205.75 is: 3,042.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.95 : 3,147.48 = 2,205.75 : x
  2. Step 2: Convert to fraction form
    2,281.95/3,147.48 = 2,205.75/x
  3. Step 3: Cross multiply
    2,281.95x = 3,147.48 × 2,205.75
  4. Step 4: Simplify right side
    2,281.95x = 6,942,554.01
  5. Step 5: Solve for x
    x = 6,942,554.01/2,281.95
  6. Step 6: Final answer
    x = 3,042.38

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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.