Home / 2,615.50-3,611.21-1,830.61

Finding the Fourth Proportional to 2,615.50, 3,611.21 and 1,830.61

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Solution

The fourth proportional to 2,615.50, 3,611.21 and 1,830.61 is: 2,527.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.50 : 3,611.21 = 1,830.61 : x
  2. Step 2: Convert to fraction form
    2,615.50/3,611.21 = 1,830.61/x
  3. Step 3: Cross multiply
    2,615.50x = 3,611.21 × 1,830.61
  4. Step 4: Simplify right side
    2,615.50x = 6,610,717.14
  5. Step 5: Solve for x
    x = 6,610,717.14/2,615.50
  6. Step 6: Final answer
    x = 2,527.52

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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.