Home / 1,231.24-1,847.68-654.52

Finding the Fourth Proportional to 1,231.24, 1,847.68 and 654.52

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Solution

The fourth proportional to 1,231.24, 1,847.68 and 654.52 is: 982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.24 : 1,847.68 = 654.52 : x
  2. Step 2: Convert to fraction form
    1,231.24/1,847.68 = 654.52/x
  3. Step 3: Cross multiply
    1,231.24x = 1,847.68 × 654.52
  4. Step 4: Simplify right side
    1,231.24x = 1,209,343.51
  5. Step 5: Solve for x
    x = 1,209,343.51/1,231.24
  6. Step 6: Final answer
    x = 982.22

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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.