Home / 7,976.30-11,965.05-2,430.11

Finding the Fourth Proportional to 7,976.30, 11,965.05 and 2,430.11

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Solution

The fourth proportional to 7,976.30, 11,965.05 and 2,430.11 is: 3,645.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.30 : 11,965.05 = 2,430.11 : x
  2. Step 2: Convert to fraction form
    7,976.30/11,965.05 = 2,430.11/x
  3. Step 3: Cross multiply
    7,976.30x = 11,965.05 × 2,430.11
  4. Step 4: Simplify right side
    7,976.30x = 29,076,417.57
  5. Step 5: Solve for x
    x = 29,076,417.57/7,976.30
  6. Step 6: Final answer
    x = 3,645.35

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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.