Home / 1,211.83-1,816.23-692.26

Finding the Fourth Proportional to 1,211.83, 1,816.23 and 692.26

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Solution

The fourth proportional to 1,211.83, 1,816.23 and 692.26 is: 1,037.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.83 : 1,816.23 = 692.26 : x
  2. Step 2: Convert to fraction form
    1,211.83/1,816.23 = 692.26/x
  3. Step 3: Cross multiply
    1,211.83x = 1,816.23 × 692.26
  4. Step 4: Simplify right side
    1,211.83x = 1,257,303.38
  5. Step 5: Solve for x
    x = 1,257,303.38/1,211.83
  6. Step 6: Final answer
    x = 1,037.52

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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.