Home / 2,272.77-3,136.32-1,328.58

Finding the Fourth Proportional to 2,272.77, 3,136.32 and 1,328.58

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Solution

The fourth proportional to 2,272.77, 3,136.32 and 1,328.58 is: 1,833.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.77 : 3,136.32 = 1,328.58 : x
  2. Step 2: Convert to fraction form
    2,272.77/3,136.32 = 1,328.58/x
  3. Step 3: Cross multiply
    2,272.77x = 3,136.32 × 1,328.58
  4. Step 4: Simplify right side
    2,272.77x = 4,166,852.03
  5. Step 5: Solve for x
    x = 4,166,852.03/2,272.77
  6. Step 6: Final answer
    x = 1,833.38

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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.