Home / 2,421.67-3,632.36-1,105.52

Finding the Fourth Proportional to 2,421.67, 3,632.36 and 1,105.52

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Solution

The fourth proportional to 2,421.67, 3,632.36 and 1,105.52 is: 1,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.67 : 3,632.36 = 1,105.52 : x
  2. Step 2: Convert to fraction form
    2,421.67/3,632.36 = 1,105.52/x
  3. Step 3: Cross multiply
    2,421.67x = 3,632.36 × 1,105.52
  4. Step 4: Simplify right side
    2,421.67x = 4,015,646.63
  5. Step 5: Solve for x
    x = 4,015,646.63/2,421.67
  6. Step 6: Final answer
    x = 1,658.21

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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.