Home / 3,357.25-5,036.45-1,278.25

Finding the Fourth Proportional to 3,357.25, 5,036.45 and 1,278.25

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Solution

The fourth proportional to 3,357.25, 5,036.45 and 1,278.25 is: 1,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357.25 : 5,036.45 = 1,278.25 : x
  2. Step 2: Convert to fraction form
    3,357.25/5,036.45 = 1,278.25/x
  3. Step 3: Cross multiply
    3,357.25x = 5,036.45 × 1,278.25
  4. Step 4: Simplify right side
    3,357.25x = 6,437,823.23
  5. Step 5: Solve for x
    x = 6,437,823.23/3,357.25
  6. Step 6: Final answer
    x = 1,917.59

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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.