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Finding the Fourth Proportional to 3,152, 4,349.76 and 1,754.84

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Solution

The fourth proportional to 3,152, 4,349.76 and 1,754.84 is: 2,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152 : 4,349.76 = 1,754.84 : x
  2. Step 2: Convert to fraction form
    3,152/4,349.76 = 1,754.84/x
  3. Step 3: Cross multiply
    3,152x = 4,349.76 × 1,754.84
  4. Step 4: Simplify right side
    3,152x = 7,633,132.84
  5. Step 5: Solve for x
    x = 7,633,132.84/3,152
  6. Step 6: Final answer
    x = 2,421.68

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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.