Home / 3,219.68-4,828.80-1,028

Finding the Fourth Proportional to 3,219.68, 4,828.80 and 1,028

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Solution

The fourth proportional to 3,219.68, 4,828.80 and 1,028 is: 1,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.68 : 4,828.80 = 1,028 : x
  2. Step 2: Convert to fraction form
    3,219.68/4,828.80 = 1,028/x
  3. Step 3: Cross multiply
    3,219.68x = 4,828.80 × 1,028
  4. Step 4: Simplify right side
    3,219.68x = 4,964,006.40
  5. Step 5: Solve for x
    x = 4,964,006.40/3,219.68
  6. Step 6: Final answer
    x = 1,541.77

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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.