Home / 3,280.69-4,921.76-1,333.81

Finding the Fourth Proportional to 3,280.69, 4,921.76 and 1,333.81

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Solution

The fourth proportional to 3,280.69, 4,921.76 and 1,333.81 is: 2,001.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.69 : 4,921.76 = 1,333.81 : x
  2. Step 2: Convert to fraction form
    3,280.69/4,921.76 = 1,333.81/x
  3. Step 3: Cross multiply
    3,280.69x = 4,921.76 × 1,333.81
  4. Step 4: Simplify right side
    3,280.69x = 6,564,692.71
  5. Step 5: Solve for x
    x = 6,564,692.71/3,280.69
  6. Step 6: Final answer
    x = 2,001.01

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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.