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Finding the Fourth Proportional to 5,281.36, 7,287.98 and 2,923.36

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Solution

The fourth proportional to 5,281.36, 7,287.98 and 2,923.36 is: 4,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.36 : 7,287.98 = 2,923.36 : x
  2. Step 2: Convert to fraction form
    5,281.36/7,287.98 = 2,923.36/x
  3. Step 3: Cross multiply
    5,281.36x = 7,287.98 × 2,923.36
  4. Step 4: Simplify right side
    5,281.36x = 21,305,389.21
  5. Step 5: Solve for x
    x = 21,305,389.21/5,281.36
  6. Step 6: Final answer
    x = 4,034.07

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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.