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Finding the Fourth Proportional to 3,258.06, 4,889.02 and 1,615.50

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Solution

The fourth proportional to 3,258.06, 4,889.02 and 1,615.50 is: 2,424.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.06 : 4,889.02 = 1,615.50 : x
  2. Step 2: Convert to fraction form
    3,258.06/4,889.02 = 1,615.50/x
  3. Step 3: Cross multiply
    3,258.06x = 4,889.02 × 1,615.50
  4. Step 4: Simplify right side
    3,258.06x = 7,898,211.81
  5. Step 5: Solve for x
    x = 7,898,211.81/3,258.06
  6. Step 6: Final answer
    x = 2,424.21

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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.