Home / 3,217.77-4,441.40-1,891.91

Finding the Fourth Proportional to 3,217.77, 4,441.40 and 1,891.91

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Solution

The fourth proportional to 3,217.77, 4,441.40 and 1,891.91 is: 2,611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.77 : 4,441.40 = 1,891.91 : x
  2. Step 2: Convert to fraction form
    3,217.77/4,441.40 = 1,891.91/x
  3. Step 3: Cross multiply
    3,217.77x = 4,441.40 × 1,891.91
  4. Step 4: Simplify right side
    3,217.77x = 8,402,729.07
  5. Step 5: Solve for x
    x = 8,402,729.07/3,217.77
  6. Step 6: Final answer
    x = 2,611.35

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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.