Home / 2,628.19-3,936.34-2,038.47

Finding the Fourth Proportional to 2,628.19, 3,936.34 and 2,038.47

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Solution

The fourth proportional to 2,628.19, 3,936.34 and 2,038.47 is: 3,053.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.19 : 3,936.34 = 2,038.47 : x
  2. Step 2: Convert to fraction form
    2,628.19/3,936.34 = 2,038.47/x
  3. Step 3: Cross multiply
    2,628.19x = 3,936.34 × 2,038.47
  4. Step 4: Simplify right side
    2,628.19x = 8,024,111.00
  5. Step 5: Solve for x
    x = 8,024,111.00/2,628.19
  6. Step 6: Final answer
    x = 3,053.09

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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.