Home / 2,690.42-3,704.74-2,494.40

Finding the Fourth Proportional to 2,690.42, 3,704.74 and 2,494.40

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Solution

The fourth proportional to 2,690.42, 3,704.74 and 2,494.40 is: 3,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.42 : 3,704.74 = 2,494.40 : x
  2. Step 2: Convert to fraction form
    2,690.42/3,704.74 = 2,494.40/x
  3. Step 3: Cross multiply
    2,690.42x = 3,704.74 × 2,494.40
  4. Step 4: Simplify right side
    2,690.42x = 9,241,078.70
  5. Step 5: Solve for x
    x = 9,241,078.70/2,690.42
  6. Step 6: Final answer
    x = 3,434.82

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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.