Home / 5,429.43-8,143.98-1,731.88

Finding the Fourth Proportional to 5,429.43, 8,143.98 and 1,731.88

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Solution

The fourth proportional to 5,429.43, 8,143.98 and 1,731.88 is: 2,597.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.43 : 8,143.98 = 1,731.88 : x
  2. Step 2: Convert to fraction form
    5,429.43/8,143.98 = 1,731.88/x
  3. Step 3: Cross multiply
    5,429.43x = 8,143.98 × 1,731.88
  4. Step 4: Simplify right side
    5,429.43x = 14,104,399.77
  5. Step 5: Solve for x
    x = 14,104,399.77/5,429.43
  6. Step 6: Final answer
    x = 2,597.77

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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.