Home / 3,021.86-4,161.84-2,430.56

Finding the Fourth Proportional to 3,021.86, 4,161.84 and 2,430.56

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Solution

The fourth proportional to 3,021.86, 4,161.84 and 2,430.56 is: 3,347.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.86 : 4,161.84 = 2,430.56 : x
  2. Step 2: Convert to fraction form
    3,021.86/4,161.84 = 2,430.56/x
  3. Step 3: Cross multiply
    3,021.86x = 4,161.84 × 2,430.56
  4. Step 4: Simplify right side
    3,021.86x = 10,115,601.83
  5. Step 5: Solve for x
    x = 10,115,601.83/3,021.86
  6. Step 6: Final answer
    x = 3,347.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.