Home / 3,136.54-4,328.96-1,941.66

Finding the Fourth Proportional to 3,136.54, 4,328.96 and 1,941.66

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Solution

The fourth proportional to 3,136.54, 4,328.96 and 1,941.66 is: 2,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.54 : 4,328.96 = 1,941.66 : x
  2. Step 2: Convert to fraction form
    3,136.54/4,328.96 = 1,941.66/x
  3. Step 3: Cross multiply
    3,136.54x = 4,328.96 × 1,941.66
  4. Step 4: Simplify right side
    3,136.54x = 8,405,368.47
  5. Step 5: Solve for x
    x = 8,405,368.47/3,136.54
  6. Step 6: Final answer
    x = 2,679.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.