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Finding the Fourth Proportional to 1,722.64, 2,571.52 and 1,606

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Solution

The fourth proportional to 1,722.64, 2,571.52 and 1,606 is: 2,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.64 : 2,571.52 = 1,606 : x
  2. Step 2: Convert to fraction form
    1,722.64/2,571.52 = 1,606/x
  3. Step 3: Cross multiply
    1,722.64x = 2,571.52 × 1,606
  4. Step 4: Simplify right side
    1,722.64x = 4,129,861.12
  5. Step 5: Solve for x
    x = 4,129,861.12/1,722.64
  6. Step 6: Final answer
    x = 2,397.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.