Home / 2,690.10-4,007.41-2,608.49

Finding the Fourth Proportional to 2,690.10, 4,007.41 and 2,608.49

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Solution

The fourth proportional to 2,690.10, 4,007.41 and 2,608.49 is: 3,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.10 : 4,007.41 = 2,608.49 : x
  2. Step 2: Convert to fraction form
    2,690.10/4,007.41 = 2,608.49/x
  3. Step 3: Cross multiply
    2,690.10x = 4,007.41 × 2,608.49
  4. Step 4: Simplify right side
    2,690.10x = 10,453,292.41
  5. Step 5: Solve for x
    x = 10,453,292.41/2,690.10
  6. Step 6: Final answer
    x = 3,885.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.