Home / 5,438.58-8,158.41-2,153.94

Finding the Fourth Proportional to 5,438.58, 8,158.41 and 2,153.94

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Solution

The fourth proportional to 5,438.58, 8,158.41 and 2,153.94 is: 3,231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.58 : 8,158.41 = 2,153.94 : x
  2. Step 2: Convert to fraction form
    5,438.58/8,158.41 = 2,153.94/x
  3. Step 3: Cross multiply
    5,438.58x = 8,158.41 × 2,153.94
  4. Step 4: Simplify right side
    5,438.58x = 17,572,725.64
  5. Step 5: Solve for x
    x = 17,572,725.64/5,438.58
  6. Step 6: Final answer
    x = 3,231.12

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1.5x scale

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.