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Finding the Fourth Proportional to 3,743.12, 5,640.04 and 3,108.08

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Solution

The fourth proportional to 3,743.12, 5,640.04 and 3,108.08 is: 4,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.12 : 5,640.04 = 3,108.08 : x
  2. Step 2: Convert to fraction form
    3,743.12/5,640.04 = 3,108.08/x
  3. Step 3: Cross multiply
    3,743.12x = 5,640.04 × 3,108.08
  4. Step 4: Simplify right side
    3,743.12x = 17,529,695.52
  5. Step 5: Solve for x
    x = 17,529,695.52/3,743.12
  6. Step 6: Final answer
    x = 4,683.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.