Home / 1,899.79-2,847.75-1,206.97

Finding the Fourth Proportional to 1,899.79, 2,847.75 and 1,206.97

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Solution

The fourth proportional to 1,899.79, 2,847.75 and 1,206.97 is: 1,809.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.79 : 2,847.75 = 1,206.97 : x
  2. Step 2: Convert to fraction form
    1,899.79/2,847.75 = 1,206.97/x
  3. Step 3: Cross multiply
    1,899.79x = 2,847.75 × 1,206.97
  4. Step 4: Simplify right side
    1,899.79x = 3,437,148.82
  5. Step 5: Solve for x
    x = 3,437,148.82/1,899.79
  6. Step 6: Final answer
    x = 1,809.23

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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.