Home / 2,021.18-3,032.98-1,047.28

Finding the Fourth Proportional to 2,021.18, 3,032.98 and 1,047.28

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Solution

The fourth proportional to 2,021.18, 3,032.98 and 1,047.28 is: 1,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.18 : 3,032.98 = 1,047.28 : x
  2. Step 2: Convert to fraction form
    2,021.18/3,032.98 = 1,047.28/x
  3. Step 3: Cross multiply
    2,021.18x = 3,032.98 × 1,047.28
  4. Step 4: Simplify right side
    2,021.18x = 3,176,379.29
  5. Step 5: Solve for x
    x = 3,176,379.29/2,021.18
  6. Step 6: Final answer
    x = 1,571.55

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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.