Home / 3,356.78-5,036.58-1,690.02

Finding the Fourth Proportional to 3,356.78, 5,036.58 and 1,690.02

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Solution

The fourth proportional to 3,356.78, 5,036.58 and 1,690.02 is: 2,535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,356.78 : 5,036.58 = 1,690.02 : x
  2. Step 2: Convert to fraction form
    3,356.78/5,036.58 = 1,690.02/x
  3. Step 3: Cross multiply
    3,356.78x = 5,036.58 × 1,690.02
  4. Step 4: Simplify right side
    3,356.78x = 8,511,920.93
  5. Step 5: Solve for x
    x = 8,511,920.93/3,356.78
  6. Step 6: Final answer
    x = 2,535.74

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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.