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Finding the Fourth Proportional to 4,170.40, 6,266.40 and 3,695.20

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Solution

The fourth proportional to 4,170.40, 6,266.40 and 3,695.20 is: 5,552.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.40 : 6,266.40 = 3,695.20 : x
  2. Step 2: Convert to fraction form
    4,170.40/6,266.40 = 3,695.20/x
  3. Step 3: Cross multiply
    4,170.40x = 6,266.40 × 3,695.20
  4. Step 4: Simplify right side
    4,170.40x = 23,155,601.28
  5. Step 5: Solve for x
    x = 23,155,601.28/4,170.40
  6. Step 6: Final answer
    x = 5,552.37

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1.5x scale

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.