Home / 2,272.88-3,136.44-1,683.20

Finding the Fourth Proportional to 2,272.88, 3,136.44 and 1,683.20

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Solution

The fourth proportional to 2,272.88, 3,136.44 and 1,683.20 is: 2,322.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.88 : 3,136.44 = 1,683.20 : x
  2. Step 2: Convert to fraction form
    2,272.88/3,136.44 = 1,683.20/x
  3. Step 3: Cross multiply
    2,272.88x = 3,136.44 × 1,683.20
  4. Step 4: Simplify right side
    2,272.88x = 5,279,255.81
  5. Step 5: Solve for x
    x = 5,279,255.81/2,272.88
  6. Step 6: Final answer
    x = 2,322.72

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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.