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Finding the Fourth Proportional to 2,389.44, 3,584.16 and 658.11

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Solution

The fourth proportional to 2,389.44, 3,584.16 and 658.11 is: 987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.44 : 3,584.16 = 658.11 : x
  2. Step 2: Convert to fraction form
    2,389.44/3,584.16 = 658.11/x
  3. Step 3: Cross multiply
    2,389.44x = 3,584.16 × 658.11
  4. Step 4: Simplify right side
    2,389.44x = 2,358,771.54
  5. Step 5: Solve for x
    x = 2,358,771.54/2,389.44
  6. Step 6: Final answer
    x = 987.17

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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.