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Finding the Fourth Proportional to 3,287, 4,536.12 and 1,890.08

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Solution

The fourth proportional to 3,287, 4,536.12 and 1,890.08 is: 2,608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287 : 4,536.12 = 1,890.08 : x
  2. Step 2: Convert to fraction form
    3,287/4,536.12 = 1,890.08/x
  3. Step 3: Cross multiply
    3,287x = 4,536.12 × 1,890.08
  4. Step 4: Simplify right side
    3,287x = 8,573,629.69
  5. Step 5: Solve for x
    x = 8,573,629.69/3,287
  6. Step 6: Final answer
    x = 2,608.34

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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.