Home / 1,453.13-2,180.37-905.01

Finding the Fourth Proportional to 1,453.13, 2,180.37 and 905.01

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Solution

The fourth proportional to 1,453.13, 2,180.37 and 905.01 is: 1,357.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.13 : 2,180.37 = 905.01 : x
  2. Step 2: Convert to fraction form
    1,453.13/2,180.37 = 905.01/x
  3. Step 3: Cross multiply
    1,453.13x = 2,180.37 × 905.01
  4. Step 4: Simplify right side
    1,453.13x = 1,973,256.65
  5. Step 5: Solve for x
    x = 1,973,256.65/1,453.13
  6. Step 6: Final answer
    x = 1,357.94

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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.