Home / 2,887.36-3,983.60-1,628.26

Finding the Fourth Proportional to 2,887.36, 3,983.60 and 1,628.26

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Solution

The fourth proportional to 2,887.36, 3,983.60 and 1,628.26 is: 2,246.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.36 : 3,983.60 = 1,628.26 : x
  2. Step 2: Convert to fraction form
    2,887.36/3,983.60 = 1,628.26/x
  3. Step 3: Cross multiply
    2,887.36x = 3,983.60 × 1,628.26
  4. Step 4: Simplify right side
    2,887.36x = 6,486,336.54
  5. Step 5: Solve for x
    x = 6,486,336.54/2,887.36
  6. Step 6: Final answer
    x = 2,246.46

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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.