Home / 3,719.44-5,580.20-1,122.40

Finding the Fourth Proportional to 3,719.44, 5,580.20 and 1,122.40

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Solution

The fourth proportional to 3,719.44, 5,580.20 and 1,122.40 is: 1,683.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.44 : 5,580.20 = 1,122.40 : x
  2. Step 2: Convert to fraction form
    3,719.44/5,580.20 = 1,122.40/x
  3. Step 3: Cross multiply
    3,719.44x = 5,580.20 × 1,122.40
  4. Step 4: Simplify right side
    3,719.44x = 6,263,216.48
  5. Step 5: Solve for x
    x = 6,263,216.48/3,719.44
  6. Step 6: Final answer
    x = 1,683.91

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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.