Home / 2,108.25-3,161.01-1,135.05

Finding the Fourth Proportional to 2,108.25, 3,161.01 and 1,135.05

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Solution

The fourth proportional to 2,108.25, 3,161.01 and 1,135.05 is: 1,701.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.25 : 3,161.01 = 1,135.05 : x
  2. Step 2: Convert to fraction form
    2,108.25/3,161.01 = 1,135.05/x
  3. Step 3: Cross multiply
    2,108.25x = 3,161.01 × 1,135.05
  4. Step 4: Simplify right side
    2,108.25x = 3,587,904.40
  5. Step 5: Solve for x
    x = 3,587,904.40/2,108.25
  6. Step 6: Final answer
    x = 1,701.84

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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.