Home / 5,415.41-8,123.88-1,717.96

Finding the Fourth Proportional to 5,415.41, 8,123.88 and 1,717.96

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Solution

The fourth proportional to 5,415.41, 8,123.88 and 1,717.96 is: 2,577.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.41 : 8,123.88 = 1,717.96 : x
  2. Step 2: Convert to fraction form
    5,415.41/8,123.88 = 1,717.96/x
  3. Step 3: Cross multiply
    5,415.41x = 8,123.88 × 1,717.96
  4. Step 4: Simplify right side
    5,415.41x = 13,956,500.88
  5. Step 5: Solve for x
    x = 13,956,500.88/5,415.41
  6. Step 6: Final answer
    x = 2,577.18

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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.