Home / 7,970.49-11,948.09-3,809.39

Finding the Fourth Proportional to 7,970.49, 11,948.09 and 3,809.39

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Solution

The fourth proportional to 7,970.49, 11,948.09 and 3,809.39 is: 5,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.49 : 11,948.09 = 3,809.39 : x
  2. Step 2: Convert to fraction form
    7,970.49/11,948.09 = 3,809.39/x
  3. Step 3: Cross multiply
    7,970.49x = 11,948.09 × 3,809.39
  4. Step 4: Simplify right side
    7,970.49x = 45,514,855.78
  5. Step 5: Solve for x
    x = 45,514,855.78/7,970.49
  6. Step 6: Final answer
    x = 5,710.42

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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.