Home / 1,436.22-2,137.12-1,431.36

Finding the Fourth Proportional to 1,436.22, 2,137.12 and 1,431.36

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Solution

The fourth proportional to 1,436.22, 2,137.12 and 1,431.36 is: 2,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.22 : 2,137.12 = 1,431.36 : x
  2. Step 2: Convert to fraction form
    1,436.22/2,137.12 = 1,431.36/x
  3. Step 3: Cross multiply
    1,436.22x = 2,137.12 × 1,431.36
  4. Step 4: Simplify right side
    1,436.22x = 3,058,988.08
  5. Step 5: Solve for x
    x = 3,058,988.08/1,436.22
  6. Step 6: Final answer
    x = 2,129.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.