Home / 3,719.08-5,581.28-1,639.60

Finding the Fourth Proportional to 3,719.08, 5,581.28 and 1,639.60

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Solution

The fourth proportional to 3,719.08, 5,581.28 and 1,639.60 is: 2,460.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.08 : 5,581.28 = 1,639.60 : x
  2. Step 2: Convert to fraction form
    3,719.08/5,581.28 = 1,639.60/x
  3. Step 3: Cross multiply
    3,719.08x = 5,581.28 × 1,639.60
  4. Step 4: Simplify right side
    3,719.08x = 9,151,066.69
  5. Step 5: Solve for x
    x = 9,151,066.69/3,719.08
  6. Step 6: Final answer
    x = 2,460.57

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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.