Home / 4,111.57-5,675.79-2,621.49

Finding the Fourth Proportional to 4,111.57, 5,675.79 and 2,621.49

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Solution

The fourth proportional to 4,111.57, 5,675.79 and 2,621.49 is: 3,618.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.57 : 5,675.79 = 2,621.49 : x
  2. Step 2: Convert to fraction form
    4,111.57/5,675.79 = 2,621.49/x
  3. Step 3: Cross multiply
    4,111.57x = 5,675.79 × 2,621.49
  4. Step 4: Simplify right side
    4,111.57x = 14,879,026.73
  5. Step 5: Solve for x
    x = 14,879,026.73/4,111.57
  6. Step 6: Final answer
    x = 3,618.82

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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.