Home / 2,126.89-2,935.08-1,195.39

Finding the Fourth Proportional to 2,126.89, 2,935.08 and 1,195.39

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Solution

The fourth proportional to 2,126.89, 2,935.08 and 1,195.39 is: 1,649.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.89 : 2,935.08 = 1,195.39 : x
  2. Step 2: Convert to fraction form
    2,126.89/2,935.08 = 1,195.39/x
  3. Step 3: Cross multiply
    2,126.89x = 2,935.08 × 1,195.39
  4. Step 4: Simplify right side
    2,126.89x = 3,508,565.28
  5. Step 5: Solve for x
    x = 3,508,565.28/2,126.89
  6. Step 6: Final answer
    x = 1,649.62

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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.