Home / 3,615.30-5,421.98-1,535.22

Finding the Fourth Proportional to 3,615.30, 5,421.98 and 1,535.22

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Solution

The fourth proportional to 3,615.30, 5,421.98 and 1,535.22 is: 2,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.30 : 5,421.98 = 1,535.22 : x
  2. Step 2: Convert to fraction form
    3,615.30/5,421.98 = 1,535.22/x
  3. Step 3: Cross multiply
    3,615.30x = 5,421.98 × 1,535.22
  4. Step 4: Simplify right side
    3,615.30x = 8,323,932.14
  5. Step 5: Solve for x
    x = 8,323,932.14/3,615.30
  6. Step 6: Final answer
    x = 2,302.42

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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.