Home / 5,678.10-8,515.98-3,217.68

Finding the Fourth Proportional to 5,678.10, 8,515.98 and 3,217.68

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Solution

The fourth proportional to 5,678.10, 8,515.98 and 3,217.68 is: 4,825.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.10 : 8,515.98 = 3,217.68 : x
  2. Step 2: Convert to fraction form
    5,678.10/8,515.98 = 3,217.68/x
  3. Step 3: Cross multiply
    5,678.10x = 8,515.98 × 3,217.68
  4. Step 4: Simplify right side
    5,678.10x = 27,401,698.53
  5. Step 5: Solve for x
    x = 27,401,698.53/5,678.10
  6. Step 6: Final answer
    x = 4,825.86

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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.