Home / 1,615.50-2,215.68-1,596.42

Finding the Fourth Proportional to 1,615.50, 2,215.68 and 1,596.42

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Solution

The fourth proportional to 1,615.50, 2,215.68 and 1,596.42 is: 2,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.50 : 2,215.68 = 1,596.42 : x
  2. Step 2: Convert to fraction form
    1,615.50/2,215.68 = 1,596.42/x
  3. Step 3: Cross multiply
    1,615.50x = 2,215.68 × 1,596.42
  4. Step 4: Simplify right side
    1,615.50x = 3,537,155.87
  5. Step 5: Solve for x
    x = 3,537,155.87/1,615.50
  6. Step 6: Final answer
    x = 2,189.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.