Home / 2,120.61-2,926.63-1,236.50

Finding the Fourth Proportional to 2,120.61, 2,926.63 and 1,236.50

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Solution

The fourth proportional to 2,120.61, 2,926.63 and 1,236.50 is: 1,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.61 : 2,926.63 = 1,236.50 : x
  2. Step 2: Convert to fraction form
    2,120.61/2,926.63 = 1,236.50/x
  3. Step 3: Cross multiply
    2,120.61x = 2,926.63 × 1,236.50
  4. Step 4: Simplify right side
    2,120.61x = 3,618,778.00
  5. Step 5: Solve for x
    x = 3,618,778.00/2,120.61
  6. Step 6: Final answer
    x = 1,706.48

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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.