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Finding the Fourth Proportional to 3,304.91, 4,957.54 and 839.75

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Solution

The fourth proportional to 3,304.91, 4,957.54 and 839.75 is: 1,259.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,304.91 : 4,957.54 = 839.75 : x
  2. Step 2: Convert to fraction form
    3,304.91/4,957.54 = 839.75/x
  3. Step 3: Cross multiply
    3,304.91x = 4,957.54 × 839.75
  4. Step 4: Simplify right side
    3,304.91x = 4,163,094.22
  5. Step 5: Solve for x
    x = 4,163,094.22/3,304.91
  6. Step 6: Final answer
    x = 1,259.67

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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.