Home / 7,085.58-10,629.66-3,136.80

Finding the Fourth Proportional to 7,085.58, 10,629.66 and 3,136.80

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Solution

The fourth proportional to 7,085.58, 10,629.66 and 3,136.80 is: 4,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.58 : 10,629.66 = 3,136.80 : x
  2. Step 2: Convert to fraction form
    7,085.58/10,629.66 = 3,136.80/x
  3. Step 3: Cross multiply
    7,085.58x = 10,629.66 × 3,136.80
  4. Step 4: Simplify right side
    7,085.58x = 33,343,117.49
  5. Step 5: Solve for x
    x = 33,343,117.49/7,085.58
  6. Step 6: Final answer
    x = 4,705.77

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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.