Home / 1,968.45-2,949.08-1,658.85

Finding the Fourth Proportional to 1,968.45, 2,949.08 and 1,658.85

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Solution

The fourth proportional to 1,968.45, 2,949.08 and 1,658.85 is: 2,485.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.45 : 2,949.08 = 1,658.85 : x
  2. Step 2: Convert to fraction form
    1,968.45/2,949.08 = 1,658.85/x
  3. Step 3: Cross multiply
    1,968.45x = 2,949.08 × 1,658.85
  4. Step 4: Simplify right side
    1,968.45x = 4,892,073.06
  5. Step 5: Solve for x
    x = 4,892,073.06/1,968.45
  6. Step 6: Final answer
    x = 2,485.24

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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.