Home / 5,445.33-8,170.69-2,158.35

Finding the Fourth Proportional to 5,445.33, 8,170.69 and 2,158.35

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Solution

The fourth proportional to 5,445.33, 8,170.69 and 2,158.35 is: 3,238.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.33 : 8,170.69 = 2,158.35 : x
  2. Step 2: Convert to fraction form
    5,445.33/8,170.69 = 2,158.35/x
  3. Step 3: Cross multiply
    5,445.33x = 8,170.69 × 2,158.35
  4. Step 4: Simplify right side
    5,445.33x = 17,635,167.91
  5. Step 5: Solve for x
    x = 17,635,167.91/5,445.33
  6. Step 6: Final answer
    x = 3,238.59

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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.