Home / 1,661.03-2,486.88-1,112.16

Finding the Fourth Proportional to 1,661.03, 2,486.88 and 1,112.16

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Solution

The fourth proportional to 1,661.03, 2,486.88 and 1,112.16 is: 1,665.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661.03 : 2,486.88 = 1,112.16 : x
  2. Step 2: Convert to fraction form
    1,661.03/2,486.88 = 1,112.16/x
  3. Step 3: Cross multiply
    1,661.03x = 2,486.88 × 1,112.16
  4. Step 4: Simplify right side
    1,661.03x = 2,765,808.46
  5. Step 5: Solve for x
    x = 2,765,808.46/1,661.03
  6. Step 6: Final answer
    x = 1,665.12

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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.