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Finding the Fourth Proportional to 4,350.40, 6,523.20 and 1,427.20

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Solution

The fourth proportional to 4,350.40, 6,523.20 and 1,427.20 is: 2,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,350.40 : 6,523.20 = 1,427.20 : x
  2. Step 2: Convert to fraction form
    4,350.40/6,523.20 = 1,427.20/x
  3. Step 3: Cross multiply
    4,350.40x = 6,523.20 × 1,427.20
  4. Step 4: Simplify right side
    4,350.40x = 9,309,911.04
  5. Step 5: Solve for x
    x = 9,309,911.04/4,350.40
  6. Step 6: Final answer
    x = 2,140.01

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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.