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Finding the Fourth Proportional to 2,450.30, 3,675.50 and 718.92

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Solution

The fourth proportional to 2,450.30, 3,675.50 and 718.92 is: 1,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.30 : 3,675.50 = 718.92 : x
  2. Step 2: Convert to fraction form
    2,450.30/3,675.50 = 718.92/x
  3. Step 3: Cross multiply
    2,450.30x = 3,675.50 × 718.92
  4. Step 4: Simplify right side
    2,450.30x = 2,642,386.87
  5. Step 5: Solve for x
    x = 2,642,386.87/2,450.30
  6. Step 6: Final answer
    x = 1,078.40

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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.