Home / 2,985.82-4,119.33-1,937.50

Finding the Fourth Proportional to 2,985.82, 4,119.33 and 1,937.50

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Solution

The fourth proportional to 2,985.82, 4,119.33 and 1,937.50 is: 2,673.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.82 : 4,119.33 = 1,937.50 : x
  2. Step 2: Convert to fraction form
    2,985.82/4,119.33 = 1,937.50/x
  3. Step 3: Cross multiply
    2,985.82x = 4,119.33 × 1,937.50
  4. Step 4: Simplify right side
    2,985.82x = 7,981,201.88
  5. Step 5: Solve for x
    x = 7,981,201.88/2,985.82
  6. Step 6: Final answer
    x = 2,673.04

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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.