Home / 4,880.96-7,321.58-1,919.28

Finding the Fourth Proportional to 4,880.96, 7,321.58 and 1,919.28

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Solution

The fourth proportional to 4,880.96, 7,321.58 and 1,919.28 is: 2,878.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.96 : 7,321.58 = 1,919.28 : x
  2. Step 2: Convert to fraction form
    4,880.96/7,321.58 = 1,919.28/x
  3. Step 3: Cross multiply
    4,880.96x = 7,321.58 × 1,919.28
  4. Step 4: Simplify right side
    4,880.96x = 14,052,162.06
  5. Step 5: Solve for x
    x = 14,052,162.06/4,880.96
  6. Step 6: Final answer
    x = 2,878.98

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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.