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Finding the Fourth Proportional to 2,479.64, 3,721.08 and 1,019.48

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Solution

The fourth proportional to 2,479.64, 3,721.08 and 1,019.48 is: 1,529.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.64 : 3,721.08 = 1,019.48 : x
  2. Step 2: Convert to fraction form
    2,479.64/3,721.08 = 1,019.48/x
  3. Step 3: Cross multiply
    2,479.64x = 3,721.08 × 1,019.48
  4. Step 4: Simplify right side
    2,479.64x = 3,793,566.64
  5. Step 5: Solve for x
    x = 3,793,566.64/2,479.64
  6. Step 6: Final answer
    x = 1,529.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.