Home / 4,889.40-7,334.10-1,812.60

Finding the Fourth Proportional to 4,889.40, 7,334.10 and 1,812.60

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Solution

The fourth proportional to 4,889.40, 7,334.10 and 1,812.60 is: 2,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.40 : 7,334.10 = 1,812.60 : x
  2. Step 2: Convert to fraction form
    4,889.40/7,334.10 = 1,812.60/x
  3. Step 3: Cross multiply
    4,889.40x = 7,334.10 × 1,812.60
  4. Step 4: Simplify right side
    4,889.40x = 13,293,789.66
  5. Step 5: Solve for x
    x = 13,293,789.66/4,889.40
  6. Step 6: Final answer
    x = 2,718.90

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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.