Home / 3,719.76-5,578.32-1,254.08

Finding the Fourth Proportional to 3,719.76, 5,578.32 and 1,254.08

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Solution

The fourth proportional to 3,719.76, 5,578.32 and 1,254.08 is: 1,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.76 : 5,578.32 = 1,254.08 : x
  2. Step 2: Convert to fraction form
    3,719.76/5,578.32 = 1,254.08/x
  3. Step 3: Cross multiply
    3,719.76x = 5,578.32 × 1,254.08
  4. Step 4: Simplify right side
    3,719.76x = 6,995,659.55
  5. Step 5: Solve for x
    x = 6,995,659.55/3,719.76
  6. Step 6: Final answer
    x = 1,880.67

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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.