Home / 2,853.58-3,937.75-1,611.50

Finding the Fourth Proportional to 2,853.58, 3,937.75 and 1,611.50

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Solution

The fourth proportional to 2,853.58, 3,937.75 and 1,611.50 is: 2,223.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.58 : 3,937.75 = 1,611.50 : x
  2. Step 2: Convert to fraction form
    2,853.58/3,937.75 = 1,611.50/x
  3. Step 3: Cross multiply
    2,853.58x = 3,937.75 × 1,611.50
  4. Step 4: Simplify right side
    2,853.58x = 6,345,684.13
  5. Step 5: Solve for x
    x = 6,345,684.13/2,853.58
  6. Step 6: Final answer
    x = 2,223.76

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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.