Home / 3,435.15-5,151.53-1,213.41

Finding the Fourth Proportional to 3,435.15, 5,151.53 and 1,213.41

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Solution

The fourth proportional to 3,435.15, 5,151.53 and 1,213.41 is: 1,819.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.15 : 5,151.53 = 1,213.41 : x
  2. Step 2: Convert to fraction form
    3,435.15/5,151.53 = 1,213.41/x
  3. Step 3: Cross multiply
    3,435.15x = 5,151.53 × 1,213.41
  4. Step 4: Simplify right side
    3,435.15x = 6,250,911.95
  5. Step 5: Solve for x
    x = 6,250,911.95/3,435.15
  6. Step 6: Final answer
    x = 1,819.69

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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.