Home / 2,775.03-3,825.90-2,137.69

Finding the Fourth Proportional to 2,775.03, 3,825.90 and 2,137.69

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Solution

The fourth proportional to 2,775.03, 3,825.90 and 2,137.69 is: 2,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.03 : 3,825.90 = 2,137.69 : x
  2. Step 2: Convert to fraction form
    2,775.03/3,825.90 = 2,137.69/x
  3. Step 3: Cross multiply
    2,775.03x = 3,825.90 × 2,137.69
  4. Step 4: Simplify right side
    2,775.03x = 8,178,588.17
  5. Step 5: Solve for x
    x = 8,178,588.17/2,775.03
  6. Step 6: Final answer
    x = 2,947.21

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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.