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Finding the Fourth Proportional to 7,288.96, 10,058.88 and 3,976.96

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Solution

The fourth proportional to 7,288.96, 10,058.88 and 3,976.96 is: 5,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.96 : 10,058.88 = 3,976.96 : x
  2. Step 2: Convert to fraction form
    7,288.96/10,058.88 = 3,976.96/x
  3. Step 3: Cross multiply
    7,288.96x = 10,058.88 × 3,976.96
  4. Step 4: Simplify right side
    7,288.96x = 40,003,763.40
  5. Step 5: Solve for x
    x = 40,003,763.40/7,288.96
  6. Step 6: Final answer
    x = 5,488.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.