Home / 2,839.40-3,919.06-1,895.24

Finding the Fourth Proportional to 2,839.40, 3,919.06 and 1,895.24

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Solution

The fourth proportional to 2,839.40, 3,919.06 and 1,895.24 is: 2,615.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.40 : 3,919.06 = 1,895.24 : x
  2. Step 2: Convert to fraction form
    2,839.40/3,919.06 = 1,895.24/x
  3. Step 3: Cross multiply
    2,839.40x = 3,919.06 × 1,895.24
  4. Step 4: Simplify right side
    2,839.40x = 7,427,559.27
  5. Step 5: Solve for x
    x = 7,427,559.27/2,839.40
  6. Step 6: Final answer
    x = 2,615.89

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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.