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Finding the Fourth Proportional to 7,402.63, 11,103.94 and 1,930.63

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Solution

The fourth proportional to 7,402.63, 11,103.94 and 1,930.63 is: 2,895.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.63 : 11,103.94 = 1,930.63 : x
  2. Step 2: Convert to fraction form
    7,402.63/11,103.94 = 1,930.63/x
  3. Step 3: Cross multiply
    7,402.63x = 11,103.94 × 1,930.63
  4. Step 4: Simplify right side
    7,402.63x = 21,437,544.16
  5. Step 5: Solve for x
    x = 21,437,544.16/7,402.63
  6. Step 6: Final answer
    x = 2,895.94

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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.