Home / 1,939.28-2,673.02-1,342.62

Finding the Fourth Proportional to 1,939.28, 2,673.02 and 1,342.62

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Solution

The fourth proportional to 1,939.28, 2,673.02 and 1,342.62 is: 1,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.28 : 2,673.02 = 1,342.62 : x
  2. Step 2: Convert to fraction form
    1,939.28/2,673.02 = 1,342.62/x
  3. Step 3: Cross multiply
    1,939.28x = 2,673.02 × 1,342.62
  4. Step 4: Simplify right side
    1,939.28x = 3,588,853.47
  5. Step 5: Solve for x
    x = 3,588,853.47/1,939.28
  6. Step 6: Final answer
    x = 1,850.62

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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.