Home / 2,161.76-3,219.68-2,026.89

Finding the Fourth Proportional to 2,161.76, 3,219.68 and 2,026.89

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Solution

The fourth proportional to 2,161.76, 3,219.68 and 2,026.89 is: 3,018.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.76 : 3,219.68 = 2,026.89 : x
  2. Step 2: Convert to fraction form
    2,161.76/3,219.68 = 2,026.89/x
  3. Step 3: Cross multiply
    2,161.76x = 3,219.68 × 2,026.89
  4. Step 4: Simplify right side
    2,161.76x = 6,525,942.26
  5. Step 5: Solve for x
    x = 6,525,942.26/2,161.76
  6. Step 6: Final answer
    x = 3,018.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.