Home / 1,939.38-2,673.31-1,586.76

Finding the Fourth Proportional to 1,939.38, 2,673.31 and 1,586.76

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Solution

The fourth proportional to 1,939.38, 2,673.31 and 1,586.76 is: 2,187.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.38 : 2,673.31 = 1,586.76 : x
  2. Step 2: Convert to fraction form
    1,939.38/2,673.31 = 1,586.76/x
  3. Step 3: Cross multiply
    1,939.38x = 2,673.31 × 1,586.76
  4. Step 4: Simplify right side
    1,939.38x = 4,241,901.38
  5. Step 5: Solve for x
    x = 4,241,901.38/1,939.38
  6. Step 6: Final answer
    x = 2,187.25

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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.