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Finding the Fourth Proportional to 3,081.08, 4,617.28 and 1,617.28

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Solution

The fourth proportional to 3,081.08, 4,617.28 and 1,617.28 is: 2,423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.08 : 4,617.28 = 1,617.28 : x
  2. Step 2: Convert to fraction form
    3,081.08/4,617.28 = 1,617.28/x
  3. Step 3: Cross multiply
    3,081.08x = 4,617.28 × 1,617.28
  4. Step 4: Simplify right side
    3,081.08x = 7,467,434.60
  5. Step 5: Solve for x
    x = 7,467,434.60/3,081.08
  6. Step 6: Final answer
    x = 2,423.64

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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.