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Finding the Fourth Proportional to 3,202, 4,418.76 and 1,730

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Solution

The fourth proportional to 3,202, 4,418.76 and 1,730 is: 2,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202 : 4,418.76 = 1,730 : x
  2. Step 2: Convert to fraction form
    3,202/4,418.76 = 1,730/x
  3. Step 3: Cross multiply
    3,202x = 4,418.76 × 1,730
  4. Step 4: Simplify right side
    3,202x = 7,644,454.80
  5. Step 5: Solve for x
    x = 7,644,454.80/3,202
  6. Step 6: Final answer
    x = 2,387.40

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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.