Home / 1,452.32-2,179.80-723.44

Finding the Fourth Proportional to 1,452.32, 2,179.80 and 723.44

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Solution

The fourth proportional to 1,452.32, 2,179.80 and 723.44 is: 1,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.32 : 2,179.80 = 723.44 : x
  2. Step 2: Convert to fraction form
    1,452.32/2,179.80 = 723.44/x
  3. Step 3: Cross multiply
    1,452.32x = 2,179.80 × 723.44
  4. Step 4: Simplify right side
    1,452.32x = 1,576,954.51
  5. Step 5: Solve for x
    x = 1,576,954.51/1,452.32
  6. Step 6: Final answer
    x = 1,085.82

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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.