Home / 5,428.73-8,140.34-2,651.24

Finding the Fourth Proportional to 5,428.73, 8,140.34 and 2,651.24

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Solution

The fourth proportional to 5,428.73, 8,140.34 and 2,651.24 is: 3,975.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.73 : 8,140.34 = 2,651.24 : x
  2. Step 2: Convert to fraction form
    5,428.73/8,140.34 = 2,651.24/x
  3. Step 3: Cross multiply
    5,428.73x = 8,140.34 × 2,651.24
  4. Step 4: Simplify right side
    5,428.73x = 21,582,022.00
  5. Step 5: Solve for x
    x = 21,582,022.00/5,428.73
  6. Step 6: Final answer
    x = 3,975.52

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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.