Home / 9,905.04-14,859.72-2,979

Finding the Fourth Proportional to 9,905.04, 14,859.72 and 2,979

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Solution

The fourth proportional to 9,905.04, 14,859.72 and 2,979 is: 4,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.04 : 14,859.72 = 2,979 : x
  2. Step 2: Convert to fraction form
    9,905.04/14,859.72 = 2,979/x
  3. Step 3: Cross multiply
    9,905.04x = 14,859.72 × 2,979
  4. Step 4: Simplify right side
    9,905.04x = 44,267,105.88
  5. Step 5: Solve for x
    x = 44,267,105.88/9,905.04
  6. Step 6: Final answer
    x = 4,469.15

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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.