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Finding the Fourth Proportional to 5,328.64, 7,353.28 and 2,971.04

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Solution

The fourth proportional to 5,328.64, 7,353.28 and 2,971.04 is: 4,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.64 : 7,353.28 = 2,971.04 : x
  2. Step 2: Convert to fraction form
    5,328.64/7,353.28 = 2,971.04/x
  3. Step 3: Cross multiply
    5,328.64x = 7,353.28 × 2,971.04
  4. Step 4: Simplify right side
    5,328.64x = 21,846,889.01
  5. Step 5: Solve for x
    x = 21,846,889.01/5,328.64
  6. Step 6: Final answer
    x = 4,099.90

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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.