Home / 2,899.16-4,028.59-2,869.05

Finding the Fourth Proportional to 2,899.16, 4,028.59 and 2,869.05

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Solution

The fourth proportional to 2,899.16, 4,028.59 and 2,869.05 is: 3,986.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.16 : 4,028.59 = 2,869.05 : x
  2. Step 2: Convert to fraction form
    2,899.16/4,028.59 = 2,869.05/x
  3. Step 3: Cross multiply
    2,899.16x = 4,028.59 × 2,869.05
  4. Step 4: Simplify right side
    2,899.16x = 11,558,218.97
  5. Step 5: Solve for x
    x = 11,558,218.97/2,899.16
  6. Step 6: Final answer
    x = 3,986.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.