Home / 5,679.55-8,516.52-2,119.18

Finding the Fourth Proportional to 5,679.55, 8,516.52 and 2,119.18

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Solution

The fourth proportional to 5,679.55, 8,516.52 and 2,119.18 is: 3,177.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.55 : 8,516.52 = 2,119.18 : x
  2. Step 2: Convert to fraction form
    5,679.55/8,516.52 = 2,119.18/x
  3. Step 3: Cross multiply
    5,679.55x = 8,516.52 × 2,119.18
  4. Step 4: Simplify right side
    5,679.55x = 18,048,038.85
  5. Step 5: Solve for x
    x = 18,048,038.85/5,679.55
  6. Step 6: Final answer
    x = 3,177.72

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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.