Home / 3,419.12-5,131.44-1,776.16

Finding the Fourth Proportional to 3,419.12, 5,131.44 and 1,776.16

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Solution

The fourth proportional to 3,419.12, 5,131.44 and 1,776.16 is: 2,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.12 : 5,131.44 = 1,776.16 : x
  2. Step 2: Convert to fraction form
    3,419.12/5,131.44 = 1,776.16/x
  3. Step 3: Cross multiply
    3,419.12x = 5,131.44 × 1,776.16
  4. Step 4: Simplify right side
    3,419.12x = 9,114,258.47
  5. Step 5: Solve for x
    x = 9,114,258.47/3,419.12
  6. Step 6: Final answer
    x = 2,665.67

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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.