Home / 2,866.56-4,301.40-1,999.20

Finding the Fourth Proportional to 2,866.56, 4,301.40 and 1,999.20

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Solution

The fourth proportional to 2,866.56, 4,301.40 and 1,999.20 is: 2,999.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.56 : 4,301.40 = 1,999.20 : x
  2. Step 2: Convert to fraction form
    2,866.56/4,301.40 = 1,999.20/x
  3. Step 3: Cross multiply
    2,866.56x = 4,301.40 × 1,999.20
  4. Step 4: Simplify right side
    2,866.56x = 8,599,358.88
  5. Step 5: Solve for x
    x = 8,599,358.88/2,866.56
  6. Step 6: Final answer
    x = 2,999.89

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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.