Home / 1,856.34-2,780.73-1,489.14

Finding the Fourth Proportional to 1,856.34, 2,780.73 and 1,489.14

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Solution

The fourth proportional to 1,856.34, 2,780.73 and 1,489.14 is: 2,230.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.34 : 2,780.73 = 1,489.14 : x
  2. Step 2: Convert to fraction form
    1,856.34/2,780.73 = 1,489.14/x
  3. Step 3: Cross multiply
    1,856.34x = 2,780.73 × 1,489.14
  4. Step 4: Simplify right side
    1,856.34x = 4,140,896.27
  5. Step 5: Solve for x
    x = 4,140,896.27/1,856.34
  6. Step 6: Final answer
    x = 2,230.68

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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.