Home / 2,939.13-4,056.15-1,820.67

Finding the Fourth Proportional to 2,939.13, 4,056.15 and 1,820.67

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Solution

The fourth proportional to 2,939.13, 4,056.15 and 1,820.67 is: 2,512.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.13 : 4,056.15 = 1,820.67 : x
  2. Step 2: Convert to fraction form
    2,939.13/4,056.15 = 1,820.67/x
  3. Step 3: Cross multiply
    2,939.13x = 4,056.15 × 1,820.67
  4. Step 4: Simplify right side
    2,939.13x = 7,384,910.62
  5. Step 5: Solve for x
    x = 7,384,910.62/2,939.13
  6. Step 6: Final answer
    x = 2,512.62

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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.