Home / 1,662.35-2,291.51-1,072.13

Finding the Fourth Proportional to 1,662.35, 2,291.51 and 1,072.13

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Solution

The fourth proportional to 1,662.35, 2,291.51 and 1,072.13 is: 1,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662.35 : 2,291.51 = 1,072.13 : x
  2. Step 2: Convert to fraction form
    1,662.35/2,291.51 = 1,072.13/x
  3. Step 3: Cross multiply
    1,662.35x = 2,291.51 × 1,072.13
  4. Step 4: Simplify right side
    1,662.35x = 2,456,791.26
  5. Step 5: Solve for x
    x = 2,456,791.26/1,662.35
  6. Step 6: Final answer
    x = 1,477.90

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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.