Home / 5,425.60-8,138.40-5,097.55

Finding the Fourth Proportional to 5,425.60, 8,138.40 and 5,097.55

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Solution

The fourth proportional to 5,425.60, 8,138.40 and 5,097.55 is: 7,646.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.60 : 8,138.40 = 5,097.55 : x
  2. Step 2: Convert to fraction form
    5,425.60/8,138.40 = 5,097.55/x
  3. Step 3: Cross multiply
    5,425.60x = 8,138.40 × 5,097.55
  4. Step 4: Simplify right side
    5,425.60x = 41,485,900.92
  5. Step 5: Solve for x
    x = 41,485,900.92/5,425.60
  6. Step 6: Final answer
    x = 7,646.33

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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.