Home / 3,579.80-5,370.60-1,114.88

Finding the Fourth Proportional to 3,579.80, 5,370.60 and 1,114.88

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Solution

The fourth proportional to 3,579.80, 5,370.60 and 1,114.88 is: 1,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.80 : 5,370.60 = 1,114.88 : x
  2. Step 2: Convert to fraction form
    3,579.80/5,370.60 = 1,114.88/x
  3. Step 3: Cross multiply
    3,579.80x = 5,370.60 × 1,114.88
  4. Step 4: Simplify right side
    3,579.80x = 5,987,574.53
  5. Step 5: Solve for x
    x = 5,987,574.53/3,579.80
  6. Step 6: Final answer
    x = 1,672.60

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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.