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Finding the Fourth Proportional to 1,452.64, 2,004.51 and 855.22

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Solution

The fourth proportional to 1,452.64, 2,004.51 and 855.22 is: 1,180.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.64 : 2,004.51 = 855.22 : x
  2. Step 2: Convert to fraction form
    1,452.64/2,004.51 = 855.22/x
  3. Step 3: Cross multiply
    1,452.64x = 2,004.51 × 855.22
  4. Step 4: Simplify right side
    1,452.64x = 1,714,297.04
  5. Step 5: Solve for x
    x = 1,714,297.04/1,452.64
  6. Step 6: Final answer
    x = 1,180.13

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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.