Home / 5,421.60-8,132.40-5,093.55

Finding the Fourth Proportional to 5,421.60, 8,132.40 and 5,093.55

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Solution

The fourth proportional to 5,421.60, 8,132.40 and 5,093.55 is: 7,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.60 : 8,132.40 = 5,093.55 : x
  2. Step 2: Convert to fraction form
    5,421.60/8,132.40 = 5,093.55/x
  3. Step 3: Cross multiply
    5,421.60x = 8,132.40 × 5,093.55
  4. Step 4: Simplify right side
    5,421.60x = 41,422,786.02
  5. Step 5: Solve for x
    x = 41,422,786.02/5,421.60
  6. Step 6: Final answer
    x = 7,640.33

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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.