Home / 5,678.37-8,511.57-2,166.12

Finding the Fourth Proportional to 5,678.37, 8,511.57 and 2,166.12

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Solution

The fourth proportional to 5,678.37, 8,511.57 and 2,166.12 is: 3,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.37 : 8,511.57 = 2,166.12 : x
  2. Step 2: Convert to fraction form
    5,678.37/8,511.57 = 2,166.12/x
  3. Step 3: Cross multiply
    5,678.37x = 8,511.57 × 2,166.12
  4. Step 4: Simplify right side
    5,678.37x = 18,437,082.01
  5. Step 5: Solve for x
    x = 18,437,082.01/5,678.37
  6. Step 6: Final answer
    x = 3,246.90

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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.