Home / 7,905.99-11,849.86-2,972.49

Finding the Fourth Proportional to 7,905.99, 11,849.86 and 2,972.49

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Solution

The fourth proportional to 7,905.99, 11,849.86 and 2,972.49 is: 4,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.99 : 11,849.86 = 2,972.49 : x
  2. Step 2: Convert to fraction form
    7,905.99/11,849.86 = 2,972.49/x
  3. Step 3: Cross multiply
    7,905.99x = 11,849.86 × 2,972.49
  4. Step 4: Simplify right side
    7,905.99x = 35,223,549.63
  5. Step 5: Solve for x
    x = 35,223,549.63/7,905.99
  6. Step 6: Final answer
    x = 4,455.30

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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.