Home / 1,820.22-2,729.70-1,125.83

Finding the Fourth Proportional to 1,820.22, 2,729.70 and 1,125.83

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Solution

The fourth proportional to 1,820.22, 2,729.70 and 1,125.83 is: 1,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.22 : 2,729.70 = 1,125.83 : x
  2. Step 2: Convert to fraction form
    1,820.22/2,729.70 = 1,125.83/x
  3. Step 3: Cross multiply
    1,820.22x = 2,729.70 × 1,125.83
  4. Step 4: Simplify right side
    1,820.22x = 3,073,164.50
  5. Step 5: Solve for x
    x = 3,073,164.50/1,820.22
  6. Step 6: Final answer
    x = 1,688.35

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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.