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Finding the Fourth Proportional to 2,464.64, 3,401.76 and 1,679

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Solution

The fourth proportional to 2,464.64, 3,401.76 and 1,679 is: 2,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,464.64 : 3,401.76 = 1,679 : x
  2. Step 2: Convert to fraction form
    2,464.64/3,401.76 = 1,679/x
  3. Step 3: Cross multiply
    2,464.64x = 3,401.76 × 1,679
  4. Step 4: Simplify right side
    2,464.64x = 5,711,555.04
  5. Step 5: Solve for x
    x = 5,711,555.04/2,464.64
  6. Step 6: Final answer
    x = 2,317.40

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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.