Home / 3,859.95-5,326.73-2,091.55

Finding the Fourth Proportional to 3,859.95, 5,326.73 and 2,091.55

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Solution

The fourth proportional to 3,859.95, 5,326.73 and 2,091.55 is: 2,886.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.95 : 5,326.73 = 2,091.55 : x
  2. Step 2: Convert to fraction form
    3,859.95/5,326.73 = 2,091.55/x
  3. Step 3: Cross multiply
    3,859.95x = 5,326.73 × 2,091.55
  4. Step 4: Simplify right side
    3,859.95x = 11,141,114.04
  5. Step 5: Solve for x
    x = 11,141,114.04/3,859.95
  6. Step 6: Final answer
    x = 2,886.34

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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.