Home / 3,615.08-5,421.85-1,149.31

Finding the Fourth Proportional to 3,615.08, 5,421.85 and 1,149.31

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Solution

The fourth proportional to 3,615.08, 5,421.85 and 1,149.31 is: 1,723.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.08 : 5,421.85 = 1,149.31 : x
  2. Step 2: Convert to fraction form
    3,615.08/5,421.85 = 1,149.31/x
  3. Step 3: Cross multiply
    3,615.08x = 5,421.85 × 1,149.31
  4. Step 4: Simplify right side
    3,615.08x = 6,231,386.42
  5. Step 5: Solve for x
    x = 6,231,386.42/3,615.08
  6. Step 6: Final answer
    x = 1,723.72

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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.