Home / 4,990.69-7,486.89-2,067.40

Finding the Fourth Proportional to 4,990.69, 7,486.89 and 2,067.40

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Solution

The fourth proportional to 4,990.69, 7,486.89 and 2,067.40 is: 3,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.69 : 7,486.89 = 2,067.40 : x
  2. Step 2: Convert to fraction form
    4,990.69/7,486.89 = 2,067.40/x
  3. Step 3: Cross multiply
    4,990.69x = 7,486.89 × 2,067.40
  4. Step 4: Simplify right side
    4,990.69x = 15,478,396.39
  5. Step 5: Solve for x
    x = 15,478,396.39/4,990.69
  6. Step 6: Final answer
    x = 3,101.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.