Home / 1,992.06-2,985.93-1,299.24

Finding the Fourth Proportional to 1,992.06, 2,985.93 and 1,299.24

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Solution

The fourth proportional to 1,992.06, 2,985.93 and 1,299.24 is: 1,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.06 : 2,985.93 = 1,299.24 : x
  2. Step 2: Convert to fraction form
    1,992.06/2,985.93 = 1,299.24/x
  3. Step 3: Cross multiply
    1,992.06x = 2,985.93 × 1,299.24
  4. Step 4: Simplify right side
    1,992.06x = 3,879,439.69
  5. Step 5: Solve for x
    x = 3,879,439.69/1,992.06
  6. Step 6: Final answer
    x = 1,947.45

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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.