Home / 5,019.49-6,926.97-2,781.55

Finding the Fourth Proportional to 5,019.49, 6,926.97 and 2,781.55

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Solution

The fourth proportional to 5,019.49, 6,926.97 and 2,781.55 is: 3,838.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.49 : 6,926.97 = 2,781.55 : x
  2. Step 2: Convert to fraction form
    5,019.49/6,926.97 = 2,781.55/x
  3. Step 3: Cross multiply
    5,019.49x = 6,926.97 × 2,781.55
  4. Step 4: Simplify right side
    5,019.49x = 19,267,713.40
  5. Step 5: Solve for x
    x = 19,267,713.40/5,019.49
  6. Step 6: Final answer
    x = 3,838.58

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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.