Home / 1,087.12-1,632.48-601.12

Finding the Fourth Proportional to 1,087.12, 1,632.48 and 601.12

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Solution

The fourth proportional to 1,087.12, 1,632.48 and 601.12 is: 902.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087.12 : 1,632.48 = 601.12 : x
  2. Step 2: Convert to fraction form
    1,087.12/1,632.48 = 601.12/x
  3. Step 3: Cross multiply
    1,087.12x = 1,632.48 × 601.12
  4. Step 4: Simplify right side
    1,087.12x = 981,316.38
  5. Step 5: Solve for x
    x = 981,316.38/1,087.12
  6. Step 6: Final answer
    x = 902.68

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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.