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Finding the Fourth Proportional to 1,754.71, 2,632.70 and 829.57

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Solution

The fourth proportional to 1,754.71, 2,632.70 and 829.57 is: 1,244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.71 : 2,632.70 = 829.57 : x
  2. Step 2: Convert to fraction form
    1,754.71/2,632.70 = 829.57/x
  3. Step 3: Cross multiply
    1,754.71x = 2,632.70 × 829.57
  4. Step 4: Simplify right side
    1,754.71x = 2,184,008.94
  5. Step 5: Solve for x
    x = 2,184,008.94/1,754.71
  6. Step 6: Final answer
    x = 1,244.66

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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.