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Finding the Fourth Proportional to 7,108.56, 10,662.74 and 3,210.24

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Solution

The fourth proportional to 7,108.56, 10,662.74 and 3,210.24 is: 4,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.56 : 10,662.74 = 3,210.24 : x
  2. Step 2: Convert to fraction form
    7,108.56/10,662.74 = 3,210.24/x
  3. Step 3: Cross multiply
    7,108.56x = 10,662.74 × 3,210.24
  4. Step 4: Simplify right side
    7,108.56x = 34,229,954.46
  5. Step 5: Solve for x
    x = 34,229,954.46/7,108.56
  6. Step 6: Final answer
    x = 4,815.31

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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.