Home / 2,811.56-4,216.70-1,168.61

Finding the Fourth Proportional to 2,811.56, 4,216.70 and 1,168.61

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Solution

The fourth proportional to 2,811.56, 4,216.70 and 1,168.61 is: 1,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.56 : 4,216.70 = 1,168.61 : x
  2. Step 2: Convert to fraction form
    2,811.56/4,216.70 = 1,168.61/x
  3. Step 3: Cross multiply
    2,811.56x = 4,216.70 × 1,168.61
  4. Step 4: Simplify right side
    2,811.56x = 4,927,661.40
  5. Step 5: Solve for x
    x = 4,927,661.40/2,811.56
  6. Step 6: Final answer
    x = 1,752.64

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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.