Home / 2,311.06-3,188.99-1,302.61

Finding the Fourth Proportional to 2,311.06, 3,188.99 and 1,302.61

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Solution

The fourth proportional to 2,311.06, 3,188.99 and 1,302.61 is: 1,797.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.06 : 3,188.99 = 1,302.61 : x
  2. Step 2: Convert to fraction form
    2,311.06/3,188.99 = 1,302.61/x
  3. Step 3: Cross multiply
    2,311.06x = 3,188.99 × 1,302.61
  4. Step 4: Simplify right side
    2,311.06x = 4,154,005.55
  5. Step 5: Solve for x
    x = 4,154,005.55/2,311.06
  6. Step 6: Final answer
    x = 1,797.45

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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.