Home / 1,395.14-2,091.96-692.24

Finding the Fourth Proportional to 1,395.14, 2,091.96 and 692.24

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Solution

The fourth proportional to 1,395.14, 2,091.96 and 692.24 is: 1,037.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.14 : 2,091.96 = 692.24 : x
  2. Step 2: Convert to fraction form
    1,395.14/2,091.96 = 692.24/x
  3. Step 3: Cross multiply
    1,395.14x = 2,091.96 × 692.24
  4. Step 4: Simplify right side
    1,395.14x = 1,448,127.93
  5. Step 5: Solve for x
    x = 1,448,127.93/1,395.14
  6. Step 6: Final answer
    x = 1,037.98

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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.