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Finding the Fourth Proportional to 7,995.79, 11,994.35 and 2,152.72

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Solution

The fourth proportional to 7,995.79, 11,994.35 and 2,152.72 is: 3,229.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.79 : 11,994.35 = 2,152.72 : x
  2. Step 2: Convert to fraction form
    7,995.79/11,994.35 = 2,152.72/x
  3. Step 3: Cross multiply
    7,995.79x = 11,994.35 × 2,152.72
  4. Step 4: Simplify right side
    7,995.79x = 25,820,477.13
  5. Step 5: Solve for x
    x = 25,820,477.13/7,995.79
  6. Step 6: Final answer
    x = 3,229.26

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1.5x scale

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.