Home / 3,907.05-5,386.77-2,843.98

Finding the Fourth Proportional to 3,907.05, 5,386.77 and 2,843.98

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Solution

The fourth proportional to 3,907.05, 5,386.77 and 2,843.98 is: 3,921.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.05 : 5,386.77 = 2,843.98 : x
  2. Step 2: Convert to fraction form
    3,907.05/5,386.77 = 2,843.98/x
  3. Step 3: Cross multiply
    3,907.05x = 5,386.77 × 2,843.98
  4. Step 4: Simplify right side
    3,907.05x = 15,319,866.14
  5. Step 5: Solve for x
    x = 15,319,866.14/3,907.05
  6. Step 6: Final answer
    x = 3,921.08

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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.