Home / 5,137.30-7,709.64-2,217.70

Finding the Fourth Proportional to 5,137.30, 7,709.64 and 2,217.70

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Solution

The fourth proportional to 5,137.30, 7,709.64 and 2,217.70 is: 3,328.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.30 : 7,709.64 = 2,217.70 : x
  2. Step 2: Convert to fraction form
    5,137.30/7,709.64 = 2,217.70/x
  3. Step 3: Cross multiply
    5,137.30x = 7,709.64 × 2,217.70
  4. Step 4: Simplify right side
    5,137.30x = 17,097,668.63
  5. Step 5: Solve for x
    x = 17,097,668.63/5,137.30
  6. Step 6: Final answer
    x = 3,328.14

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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.