Home / 5,438.16-8,157.41-1,928.70

Finding the Fourth Proportional to 5,438.16, 8,157.41 and 1,928.70

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Solution

The fourth proportional to 5,438.16, 8,157.41 and 1,928.70 is: 2,893.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.16 : 8,157.41 = 1,928.70 : x
  2. Step 2: Convert to fraction form
    5,438.16/8,157.41 = 1,928.70/x
  3. Step 3: Cross multiply
    5,438.16x = 8,157.41 × 1,928.70
  4. Step 4: Simplify right side
    5,438.16x = 15,733,196.67
  5. Step 5: Solve for x
    x = 15,733,196.67/5,438.16
  6. Step 6: Final answer
    x = 2,893.11

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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.