Home / 3,407.60-5,136.57-3,126.80

Finding the Fourth Proportional to 3,407.60, 5,136.57 and 3,126.80

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Solution

The fourth proportional to 3,407.60, 5,136.57 and 3,126.80 is: 4,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.60 : 5,136.57 = 3,126.80 : x
  2. Step 2: Convert to fraction form
    3,407.60/5,136.57 = 3,126.80/x
  3. Step 3: Cross multiply
    3,407.60x = 5,136.57 × 3,126.80
  4. Step 4: Simplify right side
    3,407.60x = 16,061,027.08
  5. Step 5: Solve for x
    x = 16,061,027.08/3,407.60
  6. Step 6: Final answer
    x = 4,713.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.