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Finding the Fourth Proportional to 7,205.66, 9,943.82 and 3,893.66

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Solution

The fourth proportional to 7,205.66, 9,943.82 and 3,893.66 is: 5,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,205.66 : 9,943.82 = 3,893.66 : x
  2. Step 2: Convert to fraction form
    7,205.66/9,943.82 = 3,893.66/x
  3. Step 3: Cross multiply
    7,205.66x = 9,943.82 × 3,893.66
  4. Step 4: Simplify right side
    7,205.66x = 38,717,834.71
  5. Step 5: Solve for x
    x = 38,717,834.71/7,205.66
  6. Step 6: Final answer
    x = 5,373.25

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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.