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Finding the Fourth Proportional to 3,018.26, 4,165.22 and 1,691.99

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Solution

The fourth proportional to 3,018.26, 4,165.22 and 1,691.99 is: 2,334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.26 : 4,165.22 = 1,691.99 : x
  2. Step 2: Convert to fraction form
    3,018.26/4,165.22 = 1,691.99/x
  3. Step 3: Cross multiply
    3,018.26x = 4,165.22 × 1,691.99
  4. Step 4: Simplify right side
    3,018.26x = 7,047,509.61
  5. Step 5: Solve for x
    x = 7,047,509.61/3,018.26
  6. Step 6: Final answer
    x = 2,334.96

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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.