Home / 3,922.23-5,411.74-2,220.77

Finding the Fourth Proportional to 3,922.23, 5,411.74 and 2,220.77

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Solution

The fourth proportional to 3,922.23, 5,411.74 and 2,220.77 is: 3,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.23 : 5,411.74 = 2,220.77 : x
  2. Step 2: Convert to fraction form
    3,922.23/5,411.74 = 2,220.77/x
  3. Step 3: Cross multiply
    3,922.23x = 5,411.74 × 2,220.77
  4. Step 4: Simplify right side
    3,922.23x = 12,018,237.82
  5. Step 5: Solve for x
    x = 12,018,237.82/3,922.23
  6. Step 6: Final answer
    x = 3,064.13

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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.