Home / 2,983.57-4,120.38-2,236.34

Finding the Fourth Proportional to 2,983.57, 4,120.38 and 2,236.34

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Solution

The fourth proportional to 2,983.57, 4,120.38 and 2,236.34 is: 3,088.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.57 : 4,120.38 = 2,236.34 : x
  2. Step 2: Convert to fraction form
    2,983.57/4,120.38 = 2,236.34/x
  3. Step 3: Cross multiply
    2,983.57x = 4,120.38 × 2,236.34
  4. Step 4: Simplify right side
    2,983.57x = 9,214,580.91
  5. Step 5: Solve for x
    x = 9,214,580.91/2,983.57
  6. Step 6: Final answer
    x = 3,088.44

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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.