Home / 3,131.94-4,688.56-1,895.60

Finding the Fourth Proportional to 3,131.94, 4,688.56 and 1,895.60

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Solution

The fourth proportional to 3,131.94, 4,688.56 and 1,895.60 is: 2,837.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.94 : 4,688.56 = 1,895.60 : x
  2. Step 2: Convert to fraction form
    3,131.94/4,688.56 = 1,895.60/x
  3. Step 3: Cross multiply
    3,131.94x = 4,688.56 × 1,895.60
  4. Step 4: Simplify right side
    3,131.94x = 8,887,634.34
  5. Step 5: Solve for x
    x = 8,887,634.34/3,131.94
  6. Step 6: Final answer
    x = 2,837.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.