Home / 1,912.76-2,865.18-1,774.35

Finding the Fourth Proportional to 1,912.76, 2,865.18 and 1,774.35

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Solution

The fourth proportional to 1,912.76, 2,865.18 and 1,774.35 is: 2,657.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.76 : 2,865.18 = 1,774.35 : x
  2. Step 2: Convert to fraction form
    1,912.76/2,865.18 = 1,774.35/x
  3. Step 3: Cross multiply
    1,912.76x = 2,865.18 × 1,774.35
  4. Step 4: Simplify right side
    1,912.76x = 5,083,832.13
  5. Step 5: Solve for x
    x = 5,083,832.13/1,912.76
  6. Step 6: Final answer
    x = 2,657.86

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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.