Home / 1,453.42-2,180.12-357.80

Finding the Fourth Proportional to 1,453.42, 2,180.12 and 357.80

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Solution

The fourth proportional to 1,453.42, 2,180.12 and 357.80 is: 536.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.42 : 2,180.12 = 357.80 : x
  2. Step 2: Convert to fraction form
    1,453.42/2,180.12 = 357.80/x
  3. Step 3: Cross multiply
    1,453.42x = 2,180.12 × 357.80
  4. Step 4: Simplify right side
    1,453.42x = 780,036.97
  5. Step 5: Solve for x
    x = 780,036.97/1,453.42
  6. Step 6: Final answer
    x = 536.69

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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.