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Finding the Fourth Proportional to 5,303.62, 7,318.89 and 2,945.68

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Solution

The fourth proportional to 5,303.62, 7,318.89 and 2,945.68 is: 4,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.62 : 7,318.89 = 2,945.68 : x
  2. Step 2: Convert to fraction form
    5,303.62/7,318.89 = 2,945.68/x
  3. Step 3: Cross multiply
    5,303.62x = 7,318.89 × 2,945.68
  4. Step 4: Simplify right side
    5,303.62x = 21,559,107.90
  5. Step 5: Solve for x
    x = 21,559,107.90/5,303.62
  6. Step 6: Final answer
    x = 4,064.98

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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.