Home / 4,086.11-6,128.24-1,620.26

Finding the Fourth Proportional to 4,086.11, 6,128.24 and 1,620.26

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Solution

The fourth proportional to 4,086.11, 6,128.24 and 1,620.26 is: 2,430.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.11 : 6,128.24 = 1,620.26 : x
  2. Step 2: Convert to fraction form
    4,086.11/6,128.24 = 1,620.26/x
  3. Step 3: Cross multiply
    4,086.11x = 6,128.24 × 1,620.26
  4. Step 4: Simplify right side
    4,086.11x = 9,929,303.40
  5. Step 5: Solve for x
    x = 9,929,303.40/4,086.11
  6. Step 6: Final answer
    x = 2,430.02

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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.