Home / 1,939.91-2,676.20-1,310.24

Finding the Fourth Proportional to 1,939.91, 2,676.20 and 1,310.24

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Solution

The fourth proportional to 1,939.91, 2,676.20 and 1,310.24 is: 1,807.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.91 : 2,676.20 = 1,310.24 : x
  2. Step 2: Convert to fraction form
    1,939.91/2,676.20 = 1,310.24/x
  3. Step 3: Cross multiply
    1,939.91x = 2,676.20 × 1,310.24
  4. Step 4: Simplify right side
    1,939.91x = 3,506,444.36
  5. Step 5: Solve for x
    x = 3,506,444.36/1,939.91
  6. Step 6: Final answer
    x = 1,807.53

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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.