Home / 2,989.07-4,124.79-1,662.77

Finding the Fourth Proportional to 2,989.07, 4,124.79 and 1,662.77

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Solution

The fourth proportional to 2,989.07, 4,124.79 and 1,662.77 is: 2,294.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.07 : 4,124.79 = 1,662.77 : x
  2. Step 2: Convert to fraction form
    2,989.07/4,124.79 = 1,662.77/x
  3. Step 3: Cross multiply
    2,989.07x = 4,124.79 × 1,662.77
  4. Step 4: Simplify right side
    2,989.07x = 6,858,577.07
  5. Step 5: Solve for x
    x = 6,858,577.07/2,989.07
  6. Step 6: Final answer
    x = 2,294.55

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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.