Home / 5,429.72-8,141.52-1,731.08

Finding the Fourth Proportional to 5,429.72, 8,141.52 and 1,731.08

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Solution

The fourth proportional to 5,429.72, 8,141.52 and 1,731.08 is: 2,595.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.72 : 8,141.52 = 1,731.08 : x
  2. Step 2: Convert to fraction form
    5,429.72/8,141.52 = 1,731.08/x
  3. Step 3: Cross multiply
    5,429.72x = 8,141.52 × 1,731.08
  4. Step 4: Simplify right side
    5,429.72x = 14,093,622.44
  5. Step 5: Solve for x
    x = 14,093,622.44/5,429.72
  6. Step 6: Final answer
    x = 2,595.64

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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.