Home / 2,771.21-4,146.39-1,539.51

Finding the Fourth Proportional to 2,771.21, 4,146.39 and 1,539.51

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Solution

The fourth proportional to 2,771.21, 4,146.39 and 1,539.51 is: 2,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.21 : 4,146.39 = 1,539.51 : x
  2. Step 2: Convert to fraction form
    2,771.21/4,146.39 = 1,539.51/x
  3. Step 3: Cross multiply
    2,771.21x = 4,146.39 × 1,539.51
  4. Step 4: Simplify right side
    2,771.21x = 6,383,393.32
  5. Step 5: Solve for x
    x = 6,383,393.32/2,771.21
  6. Step 6: Final answer
    x = 2,303.47

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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.