Home / 1,622.34-2,436.80-1,431.66

Finding the Fourth Proportional to 1,622.34, 2,436.80 and 1,431.66

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Solution

The fourth proportional to 1,622.34, 2,436.80 and 1,431.66 is: 2,150.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.34 : 2,436.80 = 1,431.66 : x
  2. Step 2: Convert to fraction form
    1,622.34/2,436.80 = 1,431.66/x
  3. Step 3: Cross multiply
    1,622.34x = 2,436.80 × 1,431.66
  4. Step 4: Simplify right side
    1,622.34x = 3,488,669.09
  5. Step 5: Solve for x
    x = 3,488,669.09/1,622.34
  6. Step 6: Final answer
    x = 2,150.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.