Home / 2,134.38-2,945.66-1,190.33

Finding the Fourth Proportional to 2,134.38, 2,945.66 and 1,190.33

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Solution

The fourth proportional to 2,134.38, 2,945.66 and 1,190.33 is: 1,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.38 : 2,945.66 = 1,190.33 : x
  2. Step 2: Convert to fraction form
    2,134.38/2,945.66 = 1,190.33/x
  3. Step 3: Cross multiply
    2,134.38x = 2,945.66 × 1,190.33
  4. Step 4: Simplify right side
    2,134.38x = 3,506,307.47
  5. Step 5: Solve for x
    x = 3,506,307.47/2,134.38
  6. Step 6: Final answer
    x = 1,642.78

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Double scale
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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.