Home / 2,690.26-3,702.46-2,276.06

Finding the Fourth Proportional to 2,690.26, 3,702.46 and 2,276.06

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Solution

The fourth proportional to 2,690.26, 3,702.46 and 2,276.06 is: 3,132.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.26 : 3,702.46 = 2,276.06 : x
  2. Step 2: Convert to fraction form
    2,690.26/3,702.46 = 2,276.06/x
  3. Step 3: Cross multiply
    2,690.26x = 3,702.46 × 2,276.06
  4. Step 4: Simplify right side
    2,690.26x = 8,427,021.11
  5. Step 5: Solve for x
    x = 8,427,021.11/2,690.26
  6. Step 6: Final answer
    x = 3,132.42

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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.