Home / 3,867.90-5,805.09-2,947.74

Finding the Fourth Proportional to 3,867.90, 5,805.09 and 2,947.74

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Solution

The fourth proportional to 3,867.90, 5,805.09 and 2,947.74 is: 4,424.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.90 : 5,805.09 = 2,947.74 : x
  2. Step 2: Convert to fraction form
    3,867.90/5,805.09 = 2,947.74/x
  3. Step 3: Cross multiply
    3,867.90x = 5,805.09 × 2,947.74
  4. Step 4: Simplify right side
    3,867.90x = 17,111,896.00
  5. Step 5: Solve for x
    x = 17,111,896.00/3,867.90
  6. Step 6: Final answer
    x = 4,424.08

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1.5x scale

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.