Home / 7,688.49-11,532.75-2,758.44

Finding the Fourth Proportional to 7,688.49, 11,532.75 and 2,758.44

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Solution

The fourth proportional to 7,688.49, 11,532.75 and 2,758.44 is: 4,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.49 : 11,532.75 = 2,758.44 : x
  2. Step 2: Convert to fraction form
    7,688.49/11,532.75 = 2,758.44/x
  3. Step 3: Cross multiply
    7,688.49x = 11,532.75 × 2,758.44
  4. Step 4: Simplify right side
    7,688.49x = 31,812,398.91
  5. Step 5: Solve for x
    x = 31,812,398.91/7,688.49
  6. Step 6: Final answer
    x = 4,137.67

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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.