Home / 3,719.46-5,579.40-1,122.18

Finding the Fourth Proportional to 3,719.46, 5,579.40 and 1,122.18

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Solution

The fourth proportional to 3,719.46, 5,579.40 and 1,122.18 is: 1,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.46 : 5,579.40 = 1,122.18 : x
  2. Step 2: Convert to fraction form
    3,719.46/5,579.40 = 1,122.18/x
  3. Step 3: Cross multiply
    3,719.46x = 5,579.40 × 1,122.18
  4. Step 4: Simplify right side
    3,719.46x = 6,261,091.09
  5. Step 5: Solve for x
    x = 6,261,091.09/3,719.46
  6. Step 6: Final answer
    x = 1,683.33

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1.5x scale

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.