Home / 3,478.53-5,219.96-2,551.80

Finding the Fourth Proportional to 3,478.53, 5,219.96 and 2,551.80

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Solution

The fourth proportional to 3,478.53, 5,219.96 and 2,551.80 is: 3,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.53 : 5,219.96 = 2,551.80 : x
  2. Step 2: Convert to fraction form
    3,478.53/5,219.96 = 2,551.80/x
  3. Step 3: Cross multiply
    3,478.53x = 5,219.96 × 2,551.80
  4. Step 4: Simplify right side
    3,478.53x = 13,320,281.17
  5. Step 5: Solve for x
    x = 13,320,281.17/3,478.53
  6. Step 6: Final answer
    x = 3,829.28

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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.