Home / 3,867.95-5,335.27-2,858.59

Finding the Fourth Proportional to 3,867.95, 5,335.27 and 2,858.59

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Solution

The fourth proportional to 3,867.95, 5,335.27 and 2,858.59 is: 3,943.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.95 : 5,335.27 = 2,858.59 : x
  2. Step 2: Convert to fraction form
    3,867.95/5,335.27 = 2,858.59/x
  3. Step 3: Cross multiply
    3,867.95x = 5,335.27 × 2,858.59
  4. Step 4: Simplify right side
    3,867.95x = 15,251,348.99
  5. Step 5: Solve for x
    x = 15,251,348.99/3,867.95
  6. Step 6: Final answer
    x = 3,943.00

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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.