Home / 3,719.12-5,580.19-1,639.04

Finding the Fourth Proportional to 3,719.12, 5,580.19 and 1,639.04

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Solution

The fourth proportional to 3,719.12, 5,580.19 and 1,639.04 is: 2,459.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.12 : 5,580.19 = 1,639.04 : x
  2. Step 2: Convert to fraction form
    3,719.12/5,580.19 = 1,639.04/x
  3. Step 3: Cross multiply
    3,719.12x = 5,580.19 × 1,639.04
  4. Step 4: Simplify right side
    3,719.12x = 9,146,128.77
  5. Step 5: Solve for x
    x = 9,146,128.77/3,719.12
  6. Step 6: Final answer
    x = 2,459.22

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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.