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Finding the Fourth Proportional to 2,960.36, 4,102.93 and 2,905.00

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Solution

The fourth proportional to 2,960.36, 4,102.93 and 2,905.00 is: 4,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.36 : 4,102.93 = 2,905.00 : x
  2. Step 2: Convert to fraction form
    2,960.36/4,102.93 = 2,905.00/x
  3. Step 3: Cross multiply
    2,960.36x = 4,102.93 × 2,905.00
  4. Step 4: Simplify right side
    2,960.36x = 11,918,994.13
  5. Step 5: Solve for x
    x = 11,918,994.13/2,960.36
  6. Step 6: Final answer
    x = 4,026.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.