Home / 2,108.33-3,158.45-1,181.07

Finding the Fourth Proportional to 2,108.33, 3,158.45 and 1,181.07

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Solution

The fourth proportional to 2,108.33, 3,158.45 and 1,181.07 is: 1,769.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.33 : 3,158.45 = 1,181.07 : x
  2. Step 2: Convert to fraction form
    2,108.33/3,158.45 = 1,181.07/x
  3. Step 3: Cross multiply
    2,108.33x = 3,158.45 × 1,181.07
  4. Step 4: Simplify right side
    2,108.33x = 3,730,344.64
  5. Step 5: Solve for x
    x = 3,730,344.64/2,108.33
  6. Step 6: Final answer
    x = 1,769.34

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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.