Home / 7,613.72-11,415.16-2,929.79

Finding the Fourth Proportional to 7,613.72, 11,415.16 and 2,929.79

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Solution

The fourth proportional to 7,613.72, 11,415.16 and 2,929.79 is: 4,392.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.72 : 11,415.16 = 2,929.79 : x
  2. Step 2: Convert to fraction form
    7,613.72/11,415.16 = 2,929.79/x
  3. Step 3: Cross multiply
    7,613.72x = 11,415.16 × 2,929.79
  4. Step 4: Simplify right side
    7,613.72x = 33,443,957.22
  5. Step 5: Solve for x
    x = 33,443,957.22/7,613.72
  6. Step 6: Final answer
    x = 4,392.59

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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.