Home / 2,188.94-3,018.26-1,715.98

Finding the Fourth Proportional to 2,188.94, 3,018.26 and 1,715.98

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Solution

The fourth proportional to 2,188.94, 3,018.26 and 1,715.98 is: 2,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.94 : 3,018.26 = 1,715.98 : x
  2. Step 2: Convert to fraction form
    2,188.94/3,018.26 = 1,715.98/x
  3. Step 3: Cross multiply
    2,188.94x = 3,018.26 × 1,715.98
  4. Step 4: Simplify right side
    2,188.94x = 5,179,273.79
  5. Step 5: Solve for x
    x = 5,179,273.79/2,188.94
  6. Step 6: Final answer
    x = 2,366.11

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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.