Home / 2,075.78-2,863.62-1,236.02

Finding the Fourth Proportional to 2,075.78, 2,863.62 and 1,236.02

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Solution

The fourth proportional to 2,075.78, 2,863.62 and 1,236.02 is: 1,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.78 : 2,863.62 = 1,236.02 : x
  2. Step 2: Convert to fraction form
    2,075.78/2,863.62 = 1,236.02/x
  3. Step 3: Cross multiply
    2,075.78x = 2,863.62 × 1,236.02
  4. Step 4: Simplify right side
    2,075.78x = 3,539,477.27
  5. Step 5: Solve for x
    x = 3,539,477.27/2,075.78
  6. Step 6: Final answer
    x = 1,705.13

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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.