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Finding the Fourth Proportional to 5,019.79, 6,926.32 and 2,894.47

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Solution

The fourth proportional to 5,019.79, 6,926.32 and 2,894.47 is: 3,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.79 : 6,926.32 = 2,894.47 : x
  2. Step 2: Convert to fraction form
    5,019.79/6,926.32 = 2,894.47/x
  3. Step 3: Cross multiply
    5,019.79x = 6,926.32 × 2,894.47
  4. Step 4: Simplify right side
    5,019.79x = 20,048,025.45
  5. Step 5: Solve for x
    x = 20,048,025.45/5,019.79
  6. Step 6: Final answer
    x = 3,993.80

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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.