Home / 5,150.55-7,107.77-2,792.67

Finding the Fourth Proportional to 5,150.55, 7,107.77 and 2,792.67

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Solution

The fourth proportional to 5,150.55, 7,107.77 and 2,792.67 is: 3,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.55 : 7,107.77 = 2,792.67 : x
  2. Step 2: Convert to fraction form
    5,150.55/7,107.77 = 2,792.67/x
  3. Step 3: Cross multiply
    5,150.55x = 7,107.77 × 2,792.67
  4. Step 4: Simplify right side
    5,150.55x = 19,849,656.05
  5. Step 5: Solve for x
    x = 19,849,656.05/5,150.55
  6. Step 6: Final answer
    x = 3,853.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.