Home / 1,089.80-1,632.36-1,013.84

Finding the Fourth Proportional to 1,089.80, 1,632.36 and 1,013.84

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Solution

The fourth proportional to 1,089.80, 1,632.36 and 1,013.84 is: 1,518.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089.80 : 1,632.36 = 1,013.84 : x
  2. Step 2: Convert to fraction form
    1,089.80/1,632.36 = 1,013.84/x
  3. Step 3: Cross multiply
    1,089.80x = 1,632.36 × 1,013.84
  4. Step 4: Simplify right side
    1,089.80x = 1,654,951.86
  5. Step 5: Solve for x
    x = 1,654,951.86/1,089.80
  6. Step 6: Final answer
    x = 1,518.58

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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.