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Finding the Fourth Proportional to 3,045.87, 4,203.18 and 1,719.54

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Solution

The fourth proportional to 3,045.87, 4,203.18 and 1,719.54 is: 2,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.87 : 4,203.18 = 1,719.54 : x
  2. Step 2: Convert to fraction form
    3,045.87/4,203.18 = 1,719.54/x
  3. Step 3: Cross multiply
    3,045.87x = 4,203.18 × 1,719.54
  4. Step 4: Simplify right side
    3,045.87x = 7,227,536.14
  5. Step 5: Solve for x
    x = 7,227,536.14/3,045.87
  6. Step 6: Final answer
    x = 2,372.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.