Home / 1,806.45-2,494.52-1,285.89

Finding the Fourth Proportional to 1,806.45, 2,494.52 and 1,285.89

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Solution

The fourth proportional to 1,806.45, 2,494.52 and 1,285.89 is: 1,775.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.45 : 2,494.52 = 1,285.89 : x
  2. Step 2: Convert to fraction form
    1,806.45/2,494.52 = 1,285.89/x
  3. Step 3: Cross multiply
    1,806.45x = 2,494.52 × 1,285.89
  4. Step 4: Simplify right side
    1,806.45x = 3,207,678.32
  5. Step 5: Solve for x
    x = 3,207,678.32/1,806.45
  6. Step 6: Final answer
    x = 1,775.68

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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.