Home / 4,689.15-7,026.75-1,912.47

Finding the Fourth Proportional to 4,689.15, 7,026.75 and 1,912.47

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Solution

The fourth proportional to 4,689.15, 7,026.75 and 1,912.47 is: 2,865.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.15 : 7,026.75 = 1,912.47 : x
  2. Step 2: Convert to fraction form
    4,689.15/7,026.75 = 1,912.47/x
  3. Step 3: Cross multiply
    4,689.15x = 7,026.75 × 1,912.47
  4. Step 4: Simplify right side
    4,689.15x = 13,438,448.57
  5. Step 5: Solve for x
    x = 13,438,448.57/4,689.15
  6. Step 6: Final answer
    x = 2,865.86

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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.