Home / 3,087.44-4,260.68-1,690.32

Finding the Fourth Proportional to 3,087.44, 4,260.68 and 1,690.32

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Solution

The fourth proportional to 3,087.44, 4,260.68 and 1,690.32 is: 2,332.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.44 : 4,260.68 = 1,690.32 : x
  2. Step 2: Convert to fraction form
    3,087.44/4,260.68 = 1,690.32/x
  3. Step 3: Cross multiply
    3,087.44x = 4,260.68 × 1,690.32
  4. Step 4: Simplify right side
    3,087.44x = 7,201,912.62
  5. Step 5: Solve for x
    x = 7,201,912.62/3,087.44
  6. Step 6: Final answer
    x = 2,332.65

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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.