Home / 2,853.56-3,937.80-1,611.56

Finding the Fourth Proportional to 2,853.56, 3,937.80 and 1,611.56

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Solution

The fourth proportional to 2,853.56, 3,937.80 and 1,611.56 is: 2,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.56 : 3,937.80 = 1,611.56 : x
  2. Step 2: Convert to fraction form
    2,853.56/3,937.80 = 1,611.56/x
  3. Step 3: Cross multiply
    2,853.56x = 3,937.80 × 1,611.56
  4. Step 4: Simplify right side
    2,853.56x = 6,346,000.97
  5. Step 5: Solve for x
    x = 6,346,000.97/2,853.56
  6. Step 6: Final answer
    x = 2,223.89

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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.