Home / 1,155.06-1,731.53-461.60

Finding the Fourth Proportional to 1,155.06, 1,731.53 and 461.60

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Solution

The fourth proportional to 1,155.06, 1,731.53 and 461.60 is: 691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.06 : 1,731.53 = 461.60 : x
  2. Step 2: Convert to fraction form
    1,155.06/1,731.53 = 461.60/x
  3. Step 3: Cross multiply
    1,155.06x = 1,731.53 × 461.60
  4. Step 4: Simplify right side
    1,155.06x = 799,270.64
  5. Step 5: Solve for x
    x = 799,270.64/1,155.06
  6. Step 6: Final answer
    x = 691.97

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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.