Home / 5,438.32-8,157.85-1,740.87

Finding the Fourth Proportional to 5,438.32, 8,157.85 and 1,740.87

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Solution

The fourth proportional to 5,438.32, 8,157.85 and 1,740.87 is: 2,611.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.32 : 8,157.85 = 1,740.87 : x
  2. Step 2: Convert to fraction form
    5,438.32/8,157.85 = 1,740.87/x
  3. Step 3: Cross multiply
    5,438.32x = 8,157.85 × 1,740.87
  4. Step 4: Simplify right side
    5,438.32x = 14,201,751.98
  5. Step 5: Solve for x
    x = 14,201,751.98/5,438.32
  6. Step 6: Final answer
    x = 2,611.42

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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.