Home / 2,135.68-2,945.58-1,349.44

Finding the Fourth Proportional to 2,135.68, 2,945.58 and 1,349.44

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Solution

The fourth proportional to 2,135.68, 2,945.58 and 1,349.44 is: 1,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.68 : 2,945.58 = 1,349.44 : x
  2. Step 2: Convert to fraction form
    2,135.68/2,945.58 = 1,349.44/x
  3. Step 3: Cross multiply
    2,135.68x = 2,945.58 × 1,349.44
  4. Step 4: Simplify right side
    2,135.68x = 3,974,883.48
  5. Step 5: Solve for x
    x = 3,974,883.48/2,135.68
  6. Step 6: Final answer
    x = 1,861.18

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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.