Home / 2,983.72-4,112.62-2,385.16

Finding the Fourth Proportional to 2,983.72, 4,112.62 and 2,385.16

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Solution

The fourth proportional to 2,983.72, 4,112.62 and 2,385.16 is: 3,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.72 : 4,112.62 = 2,385.16 : x
  2. Step 2: Convert to fraction form
    2,983.72/4,112.62 = 2,385.16/x
  3. Step 3: Cross multiply
    2,983.72x = 4,112.62 × 2,385.16
  4. Step 4: Simplify right side
    2,983.72x = 9,809,236.00
  5. Step 5: Solve for x
    x = 9,809,236.00/2,983.72
  6. Step 6: Final answer
    x = 3,287.59

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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.