Home / 2,887.33-3,984.51-1,628.38

Finding the Fourth Proportional to 2,887.33, 3,984.51 and 1,628.38

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Solution

The fourth proportional to 2,887.33, 3,984.51 and 1,628.38 is: 2,247.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.33 : 3,984.51 = 1,628.38 : x
  2. Step 2: Convert to fraction form
    2,887.33/3,984.51 = 1,628.38/x
  3. Step 3: Cross multiply
    2,887.33x = 3,984.51 × 1,628.38
  4. Step 4: Simplify right side
    2,887.33x = 6,488,308.88
  5. Step 5: Solve for x
    x = 6,488,308.88/2,887.33
  6. Step 6: Final answer
    x = 2,247.16

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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.