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Finding the Fourth Proportional to 3,608.66, 4,980.61 and 3,018.26

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Solution

The fourth proportional to 3,608.66, 4,980.61 and 3,018.26 is: 4,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.66 : 4,980.61 = 3,018.26 : x
  2. Step 2: Convert to fraction form
    3,608.66/4,980.61 = 3,018.26/x
  3. Step 3: Cross multiply
    3,608.66x = 4,980.61 × 3,018.26
  4. Step 4: Simplify right side
    3,608.66x = 15,032,775.94
  5. Step 5: Solve for x
    x = 15,032,775.94/3,608.66
  6. Step 6: Final answer
    x = 4,165.75

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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.