Home / 7,780.74-11,668.56-2,514.51

Finding the Fourth Proportional to 7,780.74, 11,668.56 and 2,514.51

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Solution

The fourth proportional to 7,780.74, 11,668.56 and 2,514.51 is: 3,770.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.74 : 11,668.56 = 2,514.51 : x
  2. Step 2: Convert to fraction form
    7,780.74/11,668.56 = 2,514.51/x
  3. Step 3: Cross multiply
    7,780.74x = 11,668.56 × 2,514.51
  4. Step 4: Simplify right side
    7,780.74x = 29,340,701.38
  5. Step 5: Solve for x
    x = 29,340,701.38/7,780.74
  6. Step 6: Final answer
    x = 3,770.94

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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.