Home / 5,427.60-7,489.68-3,661.60

Finding the Fourth Proportional to 5,427.60, 7,489.68 and 3,661.60

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Solution

The fourth proportional to 5,427.60, 7,489.68 and 3,661.60 is: 5,052.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.60 : 7,489.68 = 3,661.60 : x
  2. Step 2: Convert to fraction form
    5,427.60/7,489.68 = 3,661.60/x
  3. Step 3: Cross multiply
    5,427.60x = 7,489.68 × 3,661.60
  4. Step 4: Simplify right side
    5,427.60x = 27,424,212.29
  5. Step 5: Solve for x
    x = 27,424,212.29/5,427.60
  6. Step 6: Final answer
    x = 5,052.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.