Home / 5,427.87-8,140.86-2,505.93

Finding the Fourth Proportional to 5,427.87, 8,140.86 and 2,505.93

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Solution

The fourth proportional to 5,427.87, 8,140.86 and 2,505.93 is: 3,758.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.87 : 8,140.86 = 2,505.93 : x
  2. Step 2: Convert to fraction form
    5,427.87/8,140.86 = 2,505.93/x
  3. Step 3: Cross multiply
    5,427.87x = 8,140.86 × 2,505.93
  4. Step 4: Simplify right side
    5,427.87x = 20,400,425.30
  5. Step 5: Solve for x
    x = 20,400,425.30/5,427.87
  6. Step 6: Final answer
    x = 3,758.46

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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.