Home / 1,939.64-2,672.00-1,441.42

Finding the Fourth Proportional to 1,939.64, 2,672.00 and 1,441.42

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Solution

The fourth proportional to 1,939.64, 2,672.00 and 1,441.42 is: 1,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.64 : 2,672.00 = 1,441.42 : x
  2. Step 2: Convert to fraction form
    1,939.64/2,672.00 = 1,441.42/x
  3. Step 3: Cross multiply
    1,939.64x = 2,672.00 × 1,441.42
  4. Step 4: Simplify right side
    1,939.64x = 3,851,471.16
  5. Step 5: Solve for x
    x = 3,851,471.16/1,939.64
  6. Step 6: Final answer
    x = 1,985.66

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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.