Home / 7,184.70-10,777.66-1,990.56

Finding the Fourth Proportional to 7,184.70, 10,777.66 and 1,990.56

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Solution

The fourth proportional to 7,184.70, 10,777.66 and 1,990.56 is: 2,986.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,184.70 : 10,777.66 = 1,990.56 : x
  2. Step 2: Convert to fraction form
    7,184.70/10,777.66 = 1,990.56/x
  3. Step 3: Cross multiply
    7,184.70x = 10,777.66 × 1,990.56
  4. Step 4: Simplify right side
    7,184.70x = 21,453,578.89
  5. Step 5: Solve for x
    x = 21,453,578.89/7,184.70
  6. Step 6: Final answer
    x = 2,986.01

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1.5x scale

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.