Home / 3,168.61-4,749.67-1,605.72

Finding the Fourth Proportional to 3,168.61, 4,749.67 and 1,605.72

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Solution

The fourth proportional to 3,168.61, 4,749.67 and 1,605.72 is: 2,406.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.61 : 4,749.67 = 1,605.72 : x
  2. Step 2: Convert to fraction form
    3,168.61/4,749.67 = 1,605.72/x
  3. Step 3: Cross multiply
    3,168.61x = 4,749.67 × 1,605.72
  4. Step 4: Simplify right side
    3,168.61x = 7,626,640.11
  5. Step 5: Solve for x
    x = 7,626,640.11/3,168.61
  6. Step 6: Final answer
    x = 2,406.94

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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.