Home / 4,878.96-7,321.68-2,572.08

Finding the Fourth Proportional to 4,878.96, 7,321.68 and 2,572.08

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Solution

The fourth proportional to 4,878.96, 7,321.68 and 2,572.08 is: 3,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.96 : 7,321.68 = 2,572.08 : x
  2. Step 2: Convert to fraction form
    4,878.96/7,321.68 = 2,572.08/x
  3. Step 3: Cross multiply
    4,878.96x = 7,321.68 × 2,572.08
  4. Step 4: Simplify right side
    4,878.96x = 18,831,946.69
  5. Step 5: Solve for x
    x = 18,831,946.69/4,878.96
  6. Step 6: Final answer
    x = 3,859.83

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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.