Home / 4,621.69-6,927.87-1,990.91

Finding the Fourth Proportional to 4,621.69, 6,927.87 and 1,990.91

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Solution

The fourth proportional to 4,621.69, 6,927.87 and 1,990.91 is: 2,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.69 : 6,927.87 = 1,990.91 : x
  2. Step 2: Convert to fraction form
    4,621.69/6,927.87 = 1,990.91/x
  3. Step 3: Cross multiply
    4,621.69x = 6,927.87 × 1,990.91
  4. Step 4: Simplify right side
    4,621.69x = 13,792,765.66
  5. Step 5: Solve for x
    x = 13,792,765.66/4,621.69
  6. Step 6: Final answer
    x = 2,984.36

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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.