Home / 3,122.10-4,686.67-1,968.50

Finding the Fourth Proportional to 3,122.10, 4,686.67 and 1,968.50

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Solution

The fourth proportional to 3,122.10, 4,686.67 and 1,968.50 is: 2,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.10 : 4,686.67 = 1,968.50 : x
  2. Step 2: Convert to fraction form
    3,122.10/4,686.67 = 1,968.50/x
  3. Step 3: Cross multiply
    3,122.10x = 4,686.67 × 1,968.50
  4. Step 4: Simplify right side
    3,122.10x = 9,225,709.90
  5. Step 5: Solve for x
    x = 9,225,709.90/3,122.10
  6. Step 6: Final answer
    x = 2,954.97

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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.