Home / 3,451.18-5,176.78-1,260.14

Finding the Fourth Proportional to 3,451.18, 5,176.78 and 1,260.14

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Solution

The fourth proportional to 3,451.18, 5,176.78 and 1,260.14 is: 1,890.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.18 : 5,176.78 = 1,260.14 : x
  2. Step 2: Convert to fraction form
    3,451.18/5,176.78 = 1,260.14/x
  3. Step 3: Cross multiply
    3,451.18x = 5,176.78 × 1,260.14
  4. Step 4: Simplify right side
    3,451.18x = 6,523,467.55
  5. Step 5: Solve for x
    x = 6,523,467.55/3,451.18
  6. Step 6: Final answer
    x = 1,890.21

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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.