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Finding the Fourth Proportional to 3,451.90, 5,176.90 and 1,503.67

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Solution

The fourth proportional to 3,451.90, 5,176.90 and 1,503.67 is: 2,255.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.90 : 5,176.90 = 1,503.67 : x
  2. Step 2: Convert to fraction form
    3,451.90/5,176.90 = 1,503.67/x
  3. Step 3: Cross multiply
    3,451.90x = 5,176.90 × 1,503.67
  4. Step 4: Simplify right side
    3,451.90x = 7,784,349.22
  5. Step 5: Solve for x
    x = 7,784,349.22/3,451.90
  6. Step 6: Final answer
    x = 2,255.09

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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.