Home / 3,321.51-4,583.28-1,905.49

Finding the Fourth Proportional to 3,321.51, 4,583.28 and 1,905.49

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Solution

The fourth proportional to 3,321.51, 4,583.28 and 1,905.49 is: 2,629.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.51 : 4,583.28 = 1,905.49 : x
  2. Step 2: Convert to fraction form
    3,321.51/4,583.28 = 1,905.49/x
  3. Step 3: Cross multiply
    3,321.51x = 4,583.28 × 1,905.49
  4. Step 4: Simplify right side
    3,321.51x = 8,733,394.21
  5. Step 5: Solve for x
    x = 8,733,394.21/3,321.51
  6. Step 6: Final answer
    x = 2,629.34

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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.