Home / 1,821.21-2,729.97-1,602.51

Finding the Fourth Proportional to 1,821.21, 2,729.97 and 1,602.51

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Solution

The fourth proportional to 1,821.21, 2,729.97 and 1,602.51 is: 2,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.21 : 2,729.97 = 1,602.51 : x
  2. Step 2: Convert to fraction form
    1,821.21/2,729.97 = 1,602.51/x
  3. Step 3: Cross multiply
    1,821.21x = 2,729.97 × 1,602.51
  4. Step 4: Simplify right side
    1,821.21x = 4,374,804.22
  5. Step 5: Solve for x
    x = 4,374,804.22/1,821.21
  6. Step 6: Final answer
    x = 2,402.14

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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.