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Finding the Fourth Proportional to 7,276.81, 10,042.00 and 3,964.81

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Solution

The fourth proportional to 7,276.81, 10,042.00 and 3,964.81 is: 5,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.81 : 10,042.00 = 3,964.81 : x
  2. Step 2: Convert to fraction form
    7,276.81/10,042.00 = 3,964.81/x
  3. Step 3: Cross multiply
    7,276.81x = 10,042.00 × 3,964.81
  4. Step 4: Simplify right side
    7,276.81x = 39,814,652.08
  5. Step 5: Solve for x
    x = 39,814,652.08/7,276.81
  6. Step 6: Final answer
    x = 5,471.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.