Home / 3,611.48-5,412.78-2,878.04

Finding the Fourth Proportional to 3,611.48, 5,412.78 and 2,878.04

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Solution

The fourth proportional to 3,611.48, 5,412.78 and 2,878.04 is: 4,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.48 : 5,412.78 = 2,878.04 : x
  2. Step 2: Convert to fraction form
    3,611.48/5,412.78 = 2,878.04/x
  3. Step 3: Cross multiply
    3,611.48x = 5,412.78 × 2,878.04
  4. Step 4: Simplify right side
    3,611.48x = 15,578,197.35
  5. Step 5: Solve for x
    x = 15,578,197.35/3,611.48
  6. Step 6: Final answer
    x = 4,313.52

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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.