Home / 2,887.38-3,983.99-1,768.57

Finding the Fourth Proportional to 2,887.38, 3,983.99 and 1,768.57

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Solution

The fourth proportional to 2,887.38, 3,983.99 and 1,768.57 is: 2,440.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.38 : 3,983.99 = 1,768.57 : x
  2. Step 2: Convert to fraction form
    2,887.38/3,983.99 = 1,768.57/x
  3. Step 3: Cross multiply
    2,887.38x = 3,983.99 × 1,768.57
  4. Step 4: Simplify right side
    2,887.38x = 7,045,946.39
  5. Step 5: Solve for x
    x = 7,045,946.39/2,887.38
  6. Step 6: Final answer
    x = 2,440.26

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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.