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Finding the Fourth Proportional to 7,203.63, 9,941.01 and 3,891.63

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Solution

The fourth proportional to 7,203.63, 9,941.01 and 3,891.63 is: 5,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.63 : 9,941.01 = 3,891.63 : x
  2. Step 2: Convert to fraction form
    7,203.63/9,941.01 = 3,891.63/x
  3. Step 3: Cross multiply
    7,203.63x = 9,941.01 × 3,891.63
  4. Step 4: Simplify right side
    7,203.63x = 38,686,732.75
  5. Step 5: Solve for x
    x = 38,686,732.75/7,203.63
  6. Step 6: Final answer
    x = 5,370.45

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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.