Home / 3,927.27-5,890.75-1,330.21

Finding the Fourth Proportional to 3,927.27, 5,890.75 and 1,330.21

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Solution

The fourth proportional to 3,927.27, 5,890.75 and 1,330.21 is: 1,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.27 : 5,890.75 = 1,330.21 : x
  2. Step 2: Convert to fraction form
    3,927.27/5,890.75 = 1,330.21/x
  3. Step 3: Cross multiply
    3,927.27x = 5,890.75 × 1,330.21
  4. Step 4: Simplify right side
    3,927.27x = 7,835,934.56
  5. Step 5: Solve for x
    x = 7,835,934.56/3,927.27
  6. Step 6: Final answer
    x = 1,995.26

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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.