Home / 1,806.65-2,491.40-1,098.59

Finding the Fourth Proportional to 1,806.65, 2,491.40 and 1,098.59

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Solution

The fourth proportional to 1,806.65, 2,491.40 and 1,098.59 is: 1,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.65 : 2,491.40 = 1,098.59 : x
  2. Step 2: Convert to fraction form
    1,806.65/2,491.40 = 1,098.59/x
  3. Step 3: Cross multiply
    1,806.65x = 2,491.40 × 1,098.59
  4. Step 4: Simplify right side
    1,806.65x = 2,737,027.13
  5. Step 5: Solve for x
    x = 2,737,027.13/1,806.65
  6. Step 6: Final answer
    x = 1,514.97

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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.