Home / 5,146.81-7,719.63-1,449.34

Finding the Fourth Proportional to 5,146.81, 7,719.63 and 1,449.34

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Solution

The fourth proportional to 5,146.81, 7,719.63 and 1,449.34 is: 2,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.81 : 7,719.63 = 1,449.34 : x
  2. Step 2: Convert to fraction form
    5,146.81/7,719.63 = 1,449.34/x
  3. Step 3: Cross multiply
    5,146.81x = 7,719.63 × 1,449.34
  4. Step 4: Simplify right side
    5,146.81x = 11,188,368.54
  5. Step 5: Solve for x
    x = 11,188,368.54/5,146.81
  6. Step 6: Final answer
    x = 2,173.85

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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.