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Finding the Fourth Proportional to 3,363.70, 4,641.37 and 1,871.61

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Solution

The fourth proportional to 3,363.70, 4,641.37 and 1,871.61 is: 2,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363.70 : 4,641.37 = 1,871.61 : x
  2. Step 2: Convert to fraction form
    3,363.70/4,641.37 = 1,871.61/x
  3. Step 3: Cross multiply
    3,363.70x = 4,641.37 × 1,871.61
  4. Step 4: Simplify right side
    3,363.70x = 8,686,825.15
  5. Step 5: Solve for x
    x = 8,686,825.15/3,363.70
  6. Step 6: Final answer
    x = 2,582.52

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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.