Home / 5,678.45-8,506.94-3,215.03

Finding the Fourth Proportional to 5,678.45, 8,506.94 and 3,215.03

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Solution

The fourth proportional to 5,678.45, 8,506.94 and 3,215.03 is: 4,816.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.45 : 8,506.94 = 3,215.03 : x
  2. Step 2: Convert to fraction form
    5,678.45/8,506.94 = 3,215.03/x
  3. Step 3: Cross multiply
    5,678.45x = 8,506.94 × 3,215.03
  4. Step 4: Simplify right side
    5,678.45x = 27,350,072.50
  5. Step 5: Solve for x
    x = 27,350,072.50/5,678.45
  6. Step 6: Final answer
    x = 4,816.47

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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.