Home / 2,801.90-4,202.68-1,241.45

Finding the Fourth Proportional to 2,801.90, 4,202.68 and 1,241.45

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Solution

The fourth proportional to 2,801.90, 4,202.68 and 1,241.45 is: 1,862.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.90 : 4,202.68 = 1,241.45 : x
  2. Step 2: Convert to fraction form
    2,801.90/4,202.68 = 1,241.45/x
  3. Step 3: Cross multiply
    2,801.90x = 4,202.68 × 1,241.45
  4. Step 4: Simplify right side
    2,801.90x = 5,217,396.07
  5. Step 5: Solve for x
    x = 5,217,396.07/2,801.90
  6. Step 6: Final answer
    x = 1,862.09

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1.5x scale

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.