Home / 3,515.19-4,854.39-2,189.49

Finding the Fourth Proportional to 3,515.19, 4,854.39 and 2,189.49

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Solution

The fourth proportional to 3,515.19, 4,854.39 and 2,189.49 is: 3,023.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.19 : 4,854.39 = 2,189.49 : x
  2. Step 2: Convert to fraction form
    3,515.19/4,854.39 = 2,189.49/x
  3. Step 3: Cross multiply
    3,515.19x = 4,854.39 × 2,189.49
  4. Step 4: Simplify right side
    3,515.19x = 10,628,638.36
  5. Step 5: Solve for x
    x = 10,628,638.36/3,515.19
  6. Step 6: Final answer
    x = 3,023.63

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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.