Home / 1,939.26-2,677.17-1,313.10

Finding the Fourth Proportional to 1,939.26, 2,677.17 and 1,313.10

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Solution

The fourth proportional to 1,939.26, 2,677.17 and 1,313.10 is: 1,812.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.26 : 2,677.17 = 1,313.10 : x
  2. Step 2: Convert to fraction form
    1,939.26/2,677.17 = 1,313.10/x
  3. Step 3: Cross multiply
    1,939.26x = 2,677.17 × 1,313.10
  4. Step 4: Simplify right side
    1,939.26x = 3,515,391.93
  5. Step 5: Solve for x
    x = 3,515,391.93/1,939.26
  6. Step 6: Final answer
    x = 1,812.75

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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.