Home / 3,984.18-5,976.50-1,210.95

Finding the Fourth Proportional to 3,984.18, 5,976.50 and 1,210.95

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Solution

The fourth proportional to 3,984.18, 5,976.50 and 1,210.95 is: 1,816.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.18 : 5,976.50 = 1,210.95 : x
  2. Step 2: Convert to fraction form
    3,984.18/5,976.50 = 1,210.95/x
  3. Step 3: Cross multiply
    3,984.18x = 5,976.50 × 1,210.95
  4. Step 4: Simplify right side
    3,984.18x = 7,237,206.74
  5. Step 5: Solve for x
    x = 7,237,206.74/3,984.18
  6. Step 6: Final answer
    x = 1,816.49

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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.