Home / 5,140.32-7,708.86-2,019.39

Finding the Fourth Proportional to 5,140.32, 7,708.86 and 2,019.39

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Solution

The fourth proportional to 5,140.32, 7,708.86 and 2,019.39 is: 3,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.32 : 7,708.86 = 2,019.39 : x
  2. Step 2: Convert to fraction form
    5,140.32/7,708.86 = 2,019.39/x
  3. Step 3: Cross multiply
    5,140.32x = 7,708.86 × 2,019.39
  4. Step 4: Simplify right side
    5,140.32x = 15,567,194.80
  5. Step 5: Solve for x
    x = 15,567,194.80/5,140.32
  6. Step 6: Final answer
    x = 3,028.45

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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.