Home / 1,994.07-2,751.87-1,207.66

Finding the Fourth Proportional to 1,994.07, 2,751.87 and 1,207.66

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Solution

The fourth proportional to 1,994.07, 2,751.87 and 1,207.66 is: 1,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.07 : 2,751.87 = 1,207.66 : x
  2. Step 2: Convert to fraction form
    1,994.07/2,751.87 = 1,207.66/x
  3. Step 3: Cross multiply
    1,994.07x = 2,751.87 × 1,207.66
  4. Step 4: Simplify right side
    1,994.07x = 3,323,323.32
  5. Step 5: Solve for x
    x = 3,323,323.32/1,994.07
  6. Step 6: Final answer
    x = 1,666.60

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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.