Home / 2,752.21-4,129.23-1,107.91

Finding the Fourth Proportional to 2,752.21, 4,129.23 and 1,107.91

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Solution

The fourth proportional to 2,752.21, 4,129.23 and 1,107.91 is: 1,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.21 : 4,129.23 = 1,107.91 : x
  2. Step 2: Convert to fraction form
    2,752.21/4,129.23 = 1,107.91/x
  3. Step 3: Cross multiply
    2,752.21x = 4,129.23 × 1,107.91
  4. Step 4: Simplify right side
    2,752.21x = 4,574,825.53
  5. Step 5: Solve for x
    x = 4,574,825.53/2,752.21
  6. Step 6: Final answer
    x = 1,662.24

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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.