Home / 5,428.14-8,140.68-2,095.62

Finding the Fourth Proportional to 5,428.14, 8,140.68 and 2,095.62

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Solution

The fourth proportional to 5,428.14, 8,140.68 and 2,095.62 is: 3,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.14 : 8,140.68 = 2,095.62 : x
  2. Step 2: Convert to fraction form
    5,428.14/8,140.68 = 2,095.62/x
  3. Step 3: Cross multiply
    5,428.14x = 8,140.68 × 2,095.62
  4. Step 4: Simplify right side
    5,428.14x = 17,059,771.82
  5. Step 5: Solve for x
    x = 17,059,771.82/5,428.14
  6. Step 6: Final answer
    x = 3,142.84

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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.