Home / 2,887.06-3,983.93-1,628.05

Finding the Fourth Proportional to 2,887.06, 3,983.93 and 1,628.05

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Solution

The fourth proportional to 2,887.06, 3,983.93 and 1,628.05 is: 2,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.06 : 3,983.93 = 1,628.05 : x
  2. Step 2: Convert to fraction form
    2,887.06/3,983.93 = 1,628.05/x
  3. Step 3: Cross multiply
    2,887.06x = 3,983.93 × 1,628.05
  4. Step 4: Simplify right side
    2,887.06x = 6,486,019.14
  5. Step 5: Solve for x
    x = 6,486,019.14/2,887.06
  6. Step 6: Final answer
    x = 2,246.58

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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.