Home / 3,430.12-5,136.98-3,257.90

Finding the Fourth Proportional to 3,430.12, 5,136.98 and 3,257.90

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Solution

The fourth proportional to 3,430.12, 5,136.98 and 3,257.90 is: 4,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.12 : 5,136.98 = 3,257.90 : x
  2. Step 2: Convert to fraction form
    3,430.12/5,136.98 = 3,257.90/x
  3. Step 3: Cross multiply
    3,430.12x = 5,136.98 × 3,257.90
  4. Step 4: Simplify right side
    3,430.12x = 16,735,767.14
  5. Step 5: Solve for x
    x = 16,735,767.14/3,430.12
  6. Step 6: Final answer
    x = 4,879.06

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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.