Home / 1,939.88-2,675.94-1,154.18

Finding the Fourth Proportional to 1,939.88, 2,675.94 and 1,154.18

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Solution

The fourth proportional to 1,939.88, 2,675.94 and 1,154.18 is: 1,592.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.88 : 2,675.94 = 1,154.18 : x
  2. Step 2: Convert to fraction form
    1,939.88/2,675.94 = 1,154.18/x
  3. Step 3: Cross multiply
    1,939.88x = 2,675.94 × 1,154.18
  4. Step 4: Simplify right side
    1,939.88x = 3,088,516.43
  5. Step 5: Solve for x
    x = 3,088,516.43/1,939.88
  6. Step 6: Final answer
    x = 1,592.12

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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.