Home / 2,628.48-3,943.20-2,040

Finding the Fourth Proportional to 2,628.48, 3,943.20 and 2,040

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Solution

The fourth proportional to 2,628.48, 3,943.20 and 2,040 is: 3,060.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.48 : 3,943.20 = 2,040 : x
  2. Step 2: Convert to fraction form
    2,628.48/3,943.20 = 2,040/x
  3. Step 3: Cross multiply
    2,628.48x = 3,943.20 × 2,040
  4. Step 4: Simplify right side
    2,628.48x = 8,044,128
  5. Step 5: Solve for x
    x = 8,044,128/2,628.48
  6. Step 6: Final answer
    x = 3,060.37

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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.