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Finding the Fourth Proportional to 9,271.52, 13,903.02 and 3,720.20

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Solution

The fourth proportional to 9,271.52, 13,903.02 and 3,720.20 is: 5,578.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,271.52 : 13,903.02 = 3,720.20 : x
  2. Step 2: Convert to fraction form
    9,271.52/13,903.02 = 3,720.20/x
  3. Step 3: Cross multiply
    9,271.52x = 13,903.02 × 3,720.20
  4. Step 4: Simplify right side
    9,271.52x = 51,722,015.00
  5. Step 5: Solve for x
    x = 51,722,015.00/9,271.52
  6. Step 6: Final answer
    x = 5,578.59

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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.