Home / 2,155.04-3,232.56-1,429.24

Finding the Fourth Proportional to 2,155.04, 3,232.56 and 1,429.24

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Solution

The fourth proportional to 2,155.04, 3,232.56 and 1,429.24 is: 2,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.04 : 3,232.56 = 1,429.24 : x
  2. Step 2: Convert to fraction form
    2,155.04/3,232.56 = 1,429.24/x
  3. Step 3: Cross multiply
    2,155.04x = 3,232.56 × 1,429.24
  4. Step 4: Simplify right side
    2,155.04x = 4,620,104.05
  5. Step 5: Solve for x
    x = 4,620,104.05/2,155.04
  6. Step 6: Final answer
    x = 2,143.86

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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.