Home / 2,228.78-3,075.62-1,234.02

Finding the Fourth Proportional to 2,228.78, 3,075.62 and 1,234.02

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Solution

The fourth proportional to 2,228.78, 3,075.62 and 1,234.02 is: 1,702.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.78 : 3,075.62 = 1,234.02 : x
  2. Step 2: Convert to fraction form
    2,228.78/3,075.62 = 1,234.02/x
  3. Step 3: Cross multiply
    2,228.78x = 3,075.62 × 1,234.02
  4. Step 4: Simplify right side
    2,228.78x = 3,795,376.59
  5. Step 5: Solve for x
    x = 3,795,376.59/2,228.78
  6. Step 6: Final answer
    x = 1,702.89

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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.