Home / 3,081.42-4,618.07-2,690.40

Finding the Fourth Proportional to 3,081.42, 4,618.07 and 2,690.40

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Solution

The fourth proportional to 3,081.42, 4,618.07 and 2,690.40 is: 4,032.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.42 : 4,618.07 = 2,690.40 : x
  2. Step 2: Convert to fraction form
    3,081.42/4,618.07 = 2,690.40/x
  3. Step 3: Cross multiply
    3,081.42x = 4,618.07 × 2,690.40
  4. Step 4: Simplify right side
    3,081.42x = 12,424,442.08
  5. Step 5: Solve for x
    x = 12,424,442.08/3,081.42
  6. Step 6: Final answer
    x = 4,032.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.