Home / 3,280.88-4,920.60-1,333.52

Finding the Fourth Proportional to 3,280.88, 4,920.60 and 1,333.52

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Solution

The fourth proportional to 3,280.88, 4,920.60 and 1,333.52 is: 1,999.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.88 : 4,920.60 = 1,333.52 : x
  2. Step 2: Convert to fraction form
    3,280.88/4,920.60 = 1,333.52/x
  3. Step 3: Cross multiply
    3,280.88x = 4,920.60 × 1,333.52
  4. Step 4: Simplify right side
    3,280.88x = 6,561,718.51
  5. Step 5: Solve for x
    x = 6,561,718.51/3,280.88
  6. Step 6: Final answer
    x = 1,999.99

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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.