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Finding the Fourth Proportional to 3,649.99, 5,036.99 and 2,078.08

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Solution

The fourth proportional to 3,649.99, 5,036.99 and 2,078.08 is: 2,867.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.99 : 5,036.99 = 2,078.08 : x
  2. Step 2: Convert to fraction form
    3,649.99/5,036.99 = 2,078.08/x
  3. Step 3: Cross multiply
    3,649.99x = 5,036.99 × 2,078.08
  4. Step 4: Simplify right side
    3,649.99x = 10,467,257.79
  5. Step 5: Solve for x
    x = 10,467,257.79/3,649.99
  6. Step 6: Final answer
    x = 2,867.75

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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.