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Finding the Fourth Proportional to 4,725, 6,520.80 and 2,736.20

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Solution

The fourth proportional to 4,725, 6,520.80 and 2,736.20 is: 3,776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725 : 6,520.80 = 2,736.20 : x
  2. Step 2: Convert to fraction form
    4,725/6,520.80 = 2,736.20/x
  3. Step 3: Cross multiply
    4,725x = 6,520.80 × 2,736.20
  4. Step 4: Simplify right side
    4,725x = 17,842,180.36
  5. Step 5: Solve for x
    x = 17,842,180.36/4,725
  6. Step 6: Final answer
    x = 3,776.12

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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.