Home / 3,230.13-4,456.43-2,111.72

Finding the Fourth Proportional to 3,230.13, 4,456.43 and 2,111.72

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Solution

The fourth proportional to 3,230.13, 4,456.43 and 2,111.72 is: 2,913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.13 : 4,456.43 = 2,111.72 : x
  2. Step 2: Convert to fraction form
    3,230.13/4,456.43 = 2,111.72/x
  3. Step 3: Cross multiply
    3,230.13x = 4,456.43 × 2,111.72
  4. Step 4: Simplify right side
    3,230.13x = 9,410,699.52
  5. Step 5: Solve for x
    x = 9,410,699.52/3,230.13
  6. Step 6: Final answer
    x = 2,913.41

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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.