Home / 3,212.76-4,431.77-2,017.28

Finding the Fourth Proportional to 3,212.76, 4,431.77 and 2,017.28

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Solution

The fourth proportional to 3,212.76, 4,431.77 and 2,017.28 is: 2,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.76 : 4,431.77 = 2,017.28 : x
  2. Step 2: Convert to fraction form
    3,212.76/4,431.77 = 2,017.28/x
  3. Step 3: Cross multiply
    3,212.76x = 4,431.77 × 2,017.28
  4. Step 4: Simplify right side
    3,212.76x = 8,940,088.74
  5. Step 5: Solve for x
    x = 8,940,088.74/3,212.76
  6. Step 6: Final answer
    x = 2,782.68

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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.