Home / 4,621.99-6,937.91-1,990.79

Finding the Fourth Proportional to 4,621.99, 6,937.91 and 1,990.79

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Solution

The fourth proportional to 4,621.99, 6,937.91 and 1,990.79 is: 2,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.99 : 6,937.91 = 1,990.79 : x
  2. Step 2: Convert to fraction form
    4,621.99/6,937.91 = 1,990.79/x
  3. Step 3: Cross multiply
    4,621.99x = 6,937.91 × 1,990.79
  4. Step 4: Simplify right side
    4,621.99x = 13,811,921.85
  5. Step 5: Solve for x
    x = 13,811,921.85/4,621.99
  6. Step 6: Final answer
    x = 2,988.31

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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.