Home / 2,905.80-4,361.10-1,348.20

Finding the Fourth Proportional to 2,905.80, 4,361.10 and 1,348.20

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Solution

The fourth proportional to 2,905.80, 4,361.10 and 1,348.20 is: 2,023.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.80 : 4,361.10 = 1,348.20 : x
  2. Step 2: Convert to fraction form
    2,905.80/4,361.10 = 1,348.20/x
  3. Step 3: Cross multiply
    2,905.80x = 4,361.10 × 1,348.20
  4. Step 4: Simplify right side
    2,905.80x = 5,879,635.02
  5. Step 5: Solve for x
    x = 5,879,635.02/2,905.80
  6. Step 6: Final answer
    x = 2,023.41

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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.