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Finding the Fourth Proportional to 2,699.10, 3,724.29 and 1,520.22

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Solution

The fourth proportional to 2,699.10, 3,724.29 and 1,520.22 is: 2,097.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.10 : 3,724.29 = 1,520.22 : x
  2. Step 2: Convert to fraction form
    2,699.10/3,724.29 = 1,520.22/x
  3. Step 3: Cross multiply
    2,699.10x = 3,724.29 × 1,520.22
  4. Step 4: Simplify right side
    2,699.10x = 5,661,740.14
  5. Step 5: Solve for x
    x = 5,661,740.14/2,699.10
  6. Step 6: Final answer
    x = 2,097.64

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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.