Home / 5,814.90-8,722.32-2,117.12

Finding the Fourth Proportional to 5,814.90, 8,722.32 and 2,117.12

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Solution

The fourth proportional to 5,814.90, 8,722.32 and 2,117.12 is: 3,175.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.90 : 8,722.32 = 2,117.12 : x
  2. Step 2: Convert to fraction form
    5,814.90/8,722.32 = 2,117.12/x
  3. Step 3: Cross multiply
    5,814.90x = 8,722.32 × 2,117.12
  4. Step 4: Simplify right side
    5,814.90x = 18,466,198.12
  5. Step 5: Solve for x
    x = 18,466,198.12/5,814.90
  6. Step 6: Final answer
    x = 3,175.67

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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.