Home / 3,280.08-4,918.69-1,305.39

Finding the Fourth Proportional to 3,280.08, 4,918.69 and 1,305.39

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Solution

The fourth proportional to 3,280.08, 4,918.69 and 1,305.39 is: 1,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.08 : 4,918.69 = 1,305.39 : x
  2. Step 2: Convert to fraction form
    3,280.08/4,918.69 = 1,305.39/x
  3. Step 3: Cross multiply
    3,280.08x = 4,918.69 × 1,305.39
  4. Step 4: Simplify right side
    3,280.08x = 6,420,808.74
  5. Step 5: Solve for x
    x = 6,420,808.74/3,280.08
  6. Step 6: Final answer
    x = 1,957.52

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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.