Home / 2,811.93-3,880.43-1,552.98

Finding the Fourth Proportional to 2,811.93, 3,880.43 and 1,552.98

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Solution

The fourth proportional to 2,811.93, 3,880.43 and 1,552.98 is: 2,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.93 : 3,880.43 = 1,552.98 : x
  2. Step 2: Convert to fraction form
    2,811.93/3,880.43 = 1,552.98/x
  3. Step 3: Cross multiply
    2,811.93x = 3,880.43 × 1,552.98
  4. Step 4: Simplify right side
    2,811.93x = 6,026,234.06
  5. Step 5: Solve for x
    x = 6,026,234.06/2,811.93
  6. Step 6: Final answer
    x = 2,143.10

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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.