Home / 2,091.99-2,886.66-1,208.01

Finding the Fourth Proportional to 2,091.99, 2,886.66 and 1,208.01

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Solution

The fourth proportional to 2,091.99, 2,886.66 and 1,208.01 is: 1,666.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.99 : 2,886.66 = 1,208.01 : x
  2. Step 2: Convert to fraction form
    2,091.99/2,886.66 = 1,208.01/x
  3. Step 3: Cross multiply
    2,091.99x = 2,886.66 × 1,208.01
  4. Step 4: Simplify right side
    2,091.99x = 3,487,114.15
  5. Step 5: Solve for x
    x = 3,487,114.15/2,091.99
  6. Step 6: Final answer
    x = 1,666.89

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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.