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Finding the Fourth Proportional to 4,003.84, 6,036.64 and 3,978.88

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Solution

The fourth proportional to 4,003.84, 6,036.64 and 3,978.88 is: 5,999.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,003.84 : 6,036.64 = 3,978.88 : x
  2. Step 2: Convert to fraction form
    4,003.84/6,036.64 = 3,978.88/x
  3. Step 3: Cross multiply
    4,003.84x = 6,036.64 × 3,978.88
  4. Step 4: Simplify right side
    4,003.84x = 24,019,066.16
  5. Step 5: Solve for x
    x = 24,019,066.16/4,003.84
  6. Step 6: Final answer
    x = 5,999.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.