Home / 2,690.36-4,033.85-1,227.63

Finding the Fourth Proportional to 2,690.36, 4,033.85 and 1,227.63

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Solution

The fourth proportional to 2,690.36, 4,033.85 and 1,227.63 is: 1,840.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.36 : 4,033.85 = 1,227.63 : x
  2. Step 2: Convert to fraction form
    2,690.36/4,033.85 = 1,227.63/x
  3. Step 3: Cross multiply
    2,690.36x = 4,033.85 × 1,227.63
  4. Step 4: Simplify right side
    2,690.36x = 4,952,069.14
  5. Step 5: Solve for x
    x = 4,952,069.14/2,690.36
  6. Step 6: Final answer
    x = 1,840.67

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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.