Home / 1,089.03-1,634.67-541.59

Finding the Fourth Proportional to 1,089.03, 1,634.67 and 541.59

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Solution

The fourth proportional to 1,089.03, 1,634.67 and 541.59 is: 812.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089.03 : 1,634.67 = 541.59 : x
  2. Step 2: Convert to fraction form
    1,089.03/1,634.67 = 541.59/x
  3. Step 3: Cross multiply
    1,089.03x = 1,634.67 × 541.59
  4. Step 4: Simplify right side
    1,089.03x = 885,320.93
  5. Step 5: Solve for x
    x = 885,320.93/1,089.03
  6. Step 6: Final answer
    x = 812.94

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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.