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Finding the Fourth Proportional to 7,318.82, 10,984.35 and 3,810.03

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Solution

The fourth proportional to 7,318.82, 10,984.35 and 3,810.03 is: 5,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.82 : 10,984.35 = 3,810.03 : x
  2. Step 2: Convert to fraction form
    7,318.82/10,984.35 = 3,810.03/x
  3. Step 3: Cross multiply
    7,318.82x = 10,984.35 × 3,810.03
  4. Step 4: Simplify right side
    7,318.82x = 41,850,703.03
  5. Step 5: Solve for x
    x = 41,850,703.03/7,318.82
  6. Step 6: Final answer
    x = 5,718.23

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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.