Home / 5,137.96-7,708.56-2,019.28

Finding the Fourth Proportional to 5,137.96, 7,708.56 and 2,019.28

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Solution

The fourth proportional to 5,137.96, 7,708.56 and 2,019.28 is: 3,029.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.96 : 7,708.56 = 2,019.28 : x
  2. Step 2: Convert to fraction form
    5,137.96/7,708.56 = 2,019.28/x
  3. Step 3: Cross multiply
    5,137.96x = 7,708.56 × 2,019.28
  4. Step 4: Simplify right side
    5,137.96x = 15,565,741.04
  5. Step 5: Solve for x
    x = 15,565,741.04/5,137.96
  6. Step 6: Final answer
    x = 3,029.56

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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.