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Finding the Fourth Proportional to 2,481, 3,423.83 and 1,433.40

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Solution

The fourth proportional to 2,481, 3,423.83 and 1,433.40 is: 1,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481 : 3,423.83 = 1,433.40 : x
  2. Step 2: Convert to fraction form
    2,481/3,423.83 = 1,433.40/x
  3. Step 3: Cross multiply
    2,481x = 3,423.83 × 1,433.40
  4. Step 4: Simplify right side
    2,481x = 4,907,710.76
  5. Step 5: Solve for x
    x = 4,907,710.76/2,481
  6. Step 6: Final answer
    x = 1,978.12

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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.