Home / 3,136.39-4,704.58-1,403.80

Finding the Fourth Proportional to 3,136.39, 4,704.58 and 1,403.80

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Solution

The fourth proportional to 3,136.39, 4,704.58 and 1,403.80 is: 2,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.39 : 4,704.58 = 1,403.80 : x
  2. Step 2: Convert to fraction form
    3,136.39/4,704.58 = 1,403.80/x
  3. Step 3: Cross multiply
    3,136.39x = 4,704.58 × 1,403.80
  4. Step 4: Simplify right side
    3,136.39x = 6,604,279.40
  5. Step 5: Solve for x
    x = 6,604,279.40/3,136.39
  6. Step 6: Final answer
    x = 2,105.70

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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.