Home / 3,101.90-4,280.65-1,843.63

Finding the Fourth Proportional to 3,101.90, 4,280.65 and 1,843.63

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Solution

The fourth proportional to 3,101.90, 4,280.65 and 1,843.63 is: 2,544.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.90 : 4,280.65 = 1,843.63 : x
  2. Step 2: Convert to fraction form
    3,101.90/4,280.65 = 1,843.63/x
  3. Step 3: Cross multiply
    3,101.90x = 4,280.65 × 1,843.63
  4. Step 4: Simplify right side
    3,101.90x = 7,891,919.45
  5. Step 5: Solve for x
    x = 7,891,919.45/3,101.90
  6. Step 6: Final answer
    x = 2,544.23

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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.