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Finding the Fourth Proportional to 2,680.90, 3,696.30 and 1,735.08

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Solution

The fourth proportional to 2,680.90, 3,696.30 and 1,735.08 is: 2,392.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.90 : 3,696.30 = 1,735.08 : x
  2. Step 2: Convert to fraction form
    2,680.90/3,696.30 = 1,735.08/x
  3. Step 3: Cross multiply
    2,680.90x = 3,696.30 × 1,735.08
  4. Step 4: Simplify right side
    2,680.90x = 6,413,376.20
  5. Step 5: Solve for x
    x = 6,413,376.20/2,680.90
  6. Step 6: Final answer
    x = 2,392.25

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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.