Home / 1,939.92-2,676.98-1,153.82

Finding the Fourth Proportional to 1,939.92, 2,676.98 and 1,153.82

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Solution

The fourth proportional to 1,939.92, 2,676.98 and 1,153.82 is: 1,592.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.92 : 2,676.98 = 1,153.82 : x
  2. Step 2: Convert to fraction form
    1,939.92/2,676.98 = 1,153.82/x
  3. Step 3: Cross multiply
    1,939.92x = 2,676.98 × 1,153.82
  4. Step 4: Simplify right side
    1,939.92x = 3,088,753.06
  5. Step 5: Solve for x
    x = 3,088,753.06/1,939.92
  6. Step 6: Final answer
    x = 1,592.21

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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.