Home / 5,445.30-8,168.58-2,158.68

Finding the Fourth Proportional to 5,445.30, 8,168.58 and 2,158.68

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Solution

The fourth proportional to 5,445.30, 8,168.58 and 2,158.68 is: 3,238.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.30 : 8,168.58 = 2,158.68 : x
  2. Step 2: Convert to fraction form
    5,445.30/8,168.58 = 2,158.68/x
  3. Step 3: Cross multiply
    5,445.30x = 8,168.58 × 2,158.68
  4. Step 4: Simplify right side
    5,445.30x = 17,633,350.27
  5. Step 5: Solve for x
    x = 17,633,350.27/5,445.30
  6. Step 6: Final answer
    x = 3,238.27

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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.