Home / 3,613.84-5,418.40-1,738.72

Finding the Fourth Proportional to 3,613.84, 5,418.40 and 1,738.72

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Solution

The fourth proportional to 3,613.84, 5,418.40 and 1,738.72 is: 2,606.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.84 : 5,418.40 = 1,738.72 : x
  2. Step 2: Convert to fraction form
    3,613.84/5,418.40 = 1,738.72/x
  3. Step 3: Cross multiply
    3,613.84x = 5,418.40 × 1,738.72
  4. Step 4: Simplify right side
    3,613.84x = 9,421,080.45
  5. Step 5: Solve for x
    x = 9,421,080.45/3,613.84
  6. Step 6: Final answer
    x = 2,606.94

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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.