Home / 2,262.53-3,121.18-1,376.80

Finding the Fourth Proportional to 2,262.53, 3,121.18 and 1,376.80

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Solution

The fourth proportional to 2,262.53, 3,121.18 and 1,376.80 is: 1,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.53 : 3,121.18 = 1,376.80 : x
  2. Step 2: Convert to fraction form
    2,262.53/3,121.18 = 1,376.80/x
  3. Step 3: Cross multiply
    2,262.53x = 3,121.18 × 1,376.80
  4. Step 4: Simplify right side
    2,262.53x = 4,297,237.12
  5. Step 5: Solve for x
    x = 4,297,237.12/2,262.53
  6. Step 6: Final answer
    x = 1,899.30

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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.