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Finding the Fourth Proportional to 1,769.89, 2,655.27 and 537.23

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Solution

The fourth proportional to 1,769.89, 2,655.27 and 537.23 is: 805.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.89 : 2,655.27 = 537.23 : x
  2. Step 2: Convert to fraction form
    1,769.89/2,655.27 = 537.23/x
  3. Step 3: Cross multiply
    1,769.89x = 2,655.27 × 537.23
  4. Step 4: Simplify right side
    1,769.89x = 1,426,490.70
  5. Step 5: Solve for x
    x = 1,426,490.70/1,769.89
  6. Step 6: Final answer
    x = 805.98

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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.