Home / 1,789.65-2,681.49-1,267.07

Finding the Fourth Proportional to 1,789.65, 2,681.49 and 1,267.07

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Solution

The fourth proportional to 1,789.65, 2,681.49 and 1,267.07 is: 1,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.65 : 2,681.49 = 1,267.07 : x
  2. Step 2: Convert to fraction form
    1,789.65/2,681.49 = 1,267.07/x
  3. Step 3: Cross multiply
    1,789.65x = 2,681.49 × 1,267.07
  4. Step 4: Simplify right side
    1,789.65x = 3,397,622.13
  5. Step 5: Solve for x
    x = 3,397,622.13/1,789.65
  6. Step 6: Final answer
    x = 1,898.48

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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.