Home / 3,919.94-5,877.71-1,581.07

Finding the Fourth Proportional to 3,919.94, 5,877.71 and 1,581.07

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Solution

The fourth proportional to 3,919.94, 5,877.71 and 1,581.07 is: 2,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.94 : 5,877.71 = 1,581.07 : x
  2. Step 2: Convert to fraction form
    3,919.94/5,877.71 = 1,581.07/x
  3. Step 3: Cross multiply
    3,919.94x = 5,877.71 × 1,581.07
  4. Step 4: Simplify right side
    3,919.94x = 9,293,074.19
  5. Step 5: Solve for x
    x = 9,293,074.19/3,919.94
  6. Step 6: Final answer
    x = 2,370.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.