Home / 5,427.18-8,143.74-2,505.42

Finding the Fourth Proportional to 5,427.18, 8,143.74 and 2,505.42

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Solution

The fourth proportional to 5,427.18, 8,143.74 and 2,505.42 is: 3,759.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.18 : 8,143.74 = 2,505.42 : x
  2. Step 2: Convert to fraction form
    5,427.18/8,143.74 = 2,505.42/x
  3. Step 3: Cross multiply
    5,427.18x = 8,143.74 × 2,505.42
  4. Step 4: Simplify right side
    5,427.18x = 20,403,489.07
  5. Step 5: Solve for x
    x = 20,403,489.07/5,427.18
  6. Step 6: Final answer
    x = 3,759.50

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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.