Home / 5,678.28-8,518.50-2,756.34

Finding the Fourth Proportional to 5,678.28, 8,518.50 and 2,756.34

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Solution

The fourth proportional to 5,678.28, 8,518.50 and 2,756.34 is: 4,135.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.28 : 8,518.50 = 2,756.34 : x
  2. Step 2: Convert to fraction form
    5,678.28/8,518.50 = 2,756.34/x
  3. Step 3: Cross multiply
    5,678.28x = 8,518.50 × 2,756.34
  4. Step 4: Simplify right side
    5,678.28x = 23,479,882.29
  5. Step 5: Solve for x
    x = 23,479,882.29/5,678.28
  6. Step 6: Final answer
    x = 4,135.03

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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.