Home / 5,429.96-7,490.64-3,658.49

Finding the Fourth Proportional to 5,429.96, 7,490.64 and 3,658.49

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Solution

The fourth proportional to 5,429.96, 7,490.64 and 3,658.49 is: 5,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.96 : 7,490.64 = 3,658.49 : x
  2. Step 2: Convert to fraction form
    5,429.96/7,490.64 = 3,658.49/x
  3. Step 3: Cross multiply
    5,429.96x = 7,490.64 × 3,658.49
  4. Step 4: Simplify right side
    5,429.96x = 27,404,431.53
  5. Step 5: Solve for x
    x = 27,404,431.53/5,429.96
  6. Step 6: Final answer
    x = 5,046.89

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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.