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Finding the Fourth Proportional to 2,995.90, 4,493.84 and 804.64

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Solution

The fourth proportional to 2,995.90, 4,493.84 and 804.64 is: 1,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.90 : 4,493.84 = 804.64 : x
  2. Step 2: Convert to fraction form
    2,995.90/4,493.84 = 804.64/x
  3. Step 3: Cross multiply
    2,995.90x = 4,493.84 × 804.64
  4. Step 4: Simplify right side
    2,995.90x = 3,615,923.42
  5. Step 5: Solve for x
    x = 3,615,923.42/2,995.90
  6. Step 6: Final answer
    x = 1,206.96

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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.