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Finding the Fourth Proportional to 4,816, 6,645.72 and 2,720.08

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Solution

The fourth proportional to 4,816, 6,645.72 and 2,720.08 is: 3,753.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,816 : 6,645.72 = 2,720.08 : x
  2. Step 2: Convert to fraction form
    4,816/6,645.72 = 2,720.08/x
  3. Step 3: Cross multiply
    4,816x = 6,645.72 × 2,720.08
  4. Step 4: Simplify right side
    4,816x = 18,076,890.06
  5. Step 5: Solve for x
    x = 18,076,890.06/4,816
  6. Step 6: Final answer
    x = 3,753.51

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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.