Home / 5,427.79-7,489.50-3,191.58

Finding the Fourth Proportional to 5,427.79, 7,489.50 and 3,191.58

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Solution

The fourth proportional to 5,427.79, 7,489.50 and 3,191.58 is: 4,403.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.79 : 7,489.50 = 3,191.58 : x
  2. Step 2: Convert to fraction form
    5,427.79/7,489.50 = 3,191.58/x
  3. Step 3: Cross multiply
    5,427.79x = 7,489.50 × 3,191.58
  4. Step 4: Simplify right side
    5,427.79x = 23,903,326.44
  5. Step 5: Solve for x
    x = 23,903,326.44/5,427.79
  6. Step 6: Final answer
    x = 4,403.88

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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.