Home / 2,229.38-3,075.50-1,443.68

Finding the Fourth Proportional to 2,229.38, 3,075.50 and 1,443.68

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Solution

The fourth proportional to 2,229.38, 3,075.50 and 1,443.68 is: 1,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.38 : 3,075.50 = 1,443.68 : x
  2. Step 2: Convert to fraction form
    2,229.38/3,075.50 = 1,443.68/x
  3. Step 3: Cross multiply
    2,229.38x = 3,075.50 × 1,443.68
  4. Step 4: Simplify right side
    2,229.38x = 4,440,037.84
  5. Step 5: Solve for x
    x = 4,440,037.84/2,229.38
  6. Step 6: Final answer
    x = 1,991.60

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Half scale
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Double scale
Find fourth proportional to 2,230.38, 3,076.88 and 1,444.68
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.