Home / 2,887.39-3,983.48-1,628.16

Finding the Fourth Proportional to 2,887.39, 3,983.48 and 1,628.16

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Solution

The fourth proportional to 2,887.39, 3,983.48 and 1,628.16 is: 2,246.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.39 : 3,983.48 = 1,628.16 : x
  2. Step 2: Convert to fraction form
    2,887.39/3,983.48 = 1,628.16/x
  3. Step 3: Cross multiply
    2,887.39x = 3,983.48 × 1,628.16
  4. Step 4: Simplify right side
    2,887.39x = 6,485,725.82
  5. Step 5: Solve for x
    x = 6,485,725.82/2,887.39
  6. Step 6: Final answer
    x = 2,246.22

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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.