Home / 2,680.02-3,714.21-2,639.03

Finding the Fourth Proportional to 2,680.02, 3,714.21 and 2,639.03

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Solution

The fourth proportional to 2,680.02, 3,714.21 and 2,639.03 is: 3,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.02 : 3,714.21 = 2,639.03 : x
  2. Step 2: Convert to fraction form
    2,680.02/3,714.21 = 2,639.03/x
  3. Step 3: Cross multiply
    2,680.02x = 3,714.21 × 2,639.03
  4. Step 4: Simplify right side
    2,680.02x = 9,801,893.05
  5. Step 5: Solve for x
    x = 9,801,893.05/2,680.02
  6. Step 6: Final answer
    x = 3,657.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.