Home / 3,975.73-5,488.71-3,555.07

Finding the Fourth Proportional to 3,975.73, 5,488.71 and 3,555.07

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Solution

The fourth proportional to 3,975.73, 5,488.71 and 3,555.07 is: 4,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.73 : 5,488.71 = 3,555.07 : x
  2. Step 2: Convert to fraction form
    3,975.73/5,488.71 = 3,555.07/x
  3. Step 3: Cross multiply
    3,975.73x = 5,488.71 × 3,555.07
  4. Step 4: Simplify right side
    3,975.73x = 19,512,748.26
  5. Step 5: Solve for x
    x = 19,512,748.26/3,975.73
  6. Step 6: Final answer
    x = 4,907.97

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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.