Home / 3,511.42-5,266.97-1,319.98

Finding the Fourth Proportional to 3,511.42, 5,266.97 and 1,319.98

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Solution

The fourth proportional to 3,511.42, 5,266.97 and 1,319.98 is: 1,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.42 : 5,266.97 = 1,319.98 : x
  2. Step 2: Convert to fraction form
    3,511.42/5,266.97 = 1,319.98/x
  3. Step 3: Cross multiply
    3,511.42x = 5,266.97 × 1,319.98
  4. Step 4: Simplify right side
    3,511.42x = 6,952,295.06
  5. Step 5: Solve for x
    x = 6,952,295.06/3,511.42
  6. Step 6: Final answer
    x = 1,979.91

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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.