Home / 1,154.44-1,731.66-505.12

Finding the Fourth Proportional to 1,154.44, 1,731.66 and 505.12

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Solution

The fourth proportional to 1,154.44, 1,731.66 and 505.12 is: 757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.44 : 1,731.66 = 505.12 : x
  2. Step 2: Convert to fraction form
    1,154.44/1,731.66 = 505.12/x
  3. Step 3: Cross multiply
    1,154.44x = 1,731.66 × 505.12
  4. Step 4: Simplify right side
    1,154.44x = 874,696.10
  5. Step 5: Solve for x
    x = 874,696.10/1,154.44
  6. Step 6: Final answer
    x = 757.68

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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.