Home / 1,341.06-2,012.85-692.25

Finding the Fourth Proportional to 1,341.06, 2,012.85 and 692.25

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Solution

The fourth proportional to 1,341.06, 2,012.85 and 692.25 is: 1,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.06 : 2,012.85 = 692.25 : x
  2. Step 2: Convert to fraction form
    1,341.06/2,012.85 = 692.25/x
  3. Step 3: Cross multiply
    1,341.06x = 2,012.85 × 692.25
  4. Step 4: Simplify right side
    1,341.06x = 1,393,395.41
  5. Step 5: Solve for x
    x = 1,393,395.41/1,341.06
  6. Step 6: Final answer
    x = 1,039.03

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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.