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Finding the Fourth Proportional to 2,157.52, 2,977.52 and 1,632.64

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Solution

The fourth proportional to 2,157.52, 2,977.52 and 1,632.64 is: 2,253.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.52 : 2,977.52 = 1,632.64 : x
  2. Step 2: Convert to fraction form
    2,157.52/2,977.52 = 1,632.64/x
  3. Step 3: Cross multiply
    2,157.52x = 2,977.52 × 1,632.64
  4. Step 4: Simplify right side
    2,157.52x = 4,861,218.25
  5. Step 5: Solve for x
    x = 4,861,218.25/2,157.52
  6. Step 6: Final answer
    x = 2,253.15

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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.