Home / 3,168.07-4,370.85-1,908.65

Finding the Fourth Proportional to 3,168.07, 4,370.85 and 1,908.65

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Solution

The fourth proportional to 3,168.07, 4,370.85 and 1,908.65 is: 2,633.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.07 : 4,370.85 = 1,908.65 : x
  2. Step 2: Convert to fraction form
    3,168.07/4,370.85 = 1,908.65/x
  3. Step 3: Cross multiply
    3,168.07x = 4,370.85 × 1,908.65
  4. Step 4: Simplify right side
    3,168.07x = 8,342,409.19
  5. Step 5: Solve for x
    x = 8,342,409.19/3,168.07
  6. Step 6: Final answer
    x = 2,633.28

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1.5x scale

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.