Home / 3,399.69-5,102.07-1,320.02

Finding the Fourth Proportional to 3,399.69, 5,102.07 and 1,320.02

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Solution

The fourth proportional to 3,399.69, 5,102.07 and 1,320.02 is: 1,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.69 : 5,102.07 = 1,320.02 : x
  2. Step 2: Convert to fraction form
    3,399.69/5,102.07 = 1,320.02/x
  3. Step 3: Cross multiply
    3,399.69x = 5,102.07 × 1,320.02
  4. Step 4: Simplify right side
    3,399.69x = 6,734,802.33
  5. Step 5: Solve for x
    x = 6,734,802.33/3,399.69
  6. Step 6: Final answer
    x = 1,981.00

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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.