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Finding the Fourth Proportional to 2,479.46, 3,420.47 and 1,484.54

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Solution

The fourth proportional to 2,479.46, 3,420.47 and 1,484.54 is: 2,047.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.46 : 3,420.47 = 1,484.54 : x
  2. Step 2: Convert to fraction form
    2,479.46/3,420.47 = 1,484.54/x
  3. Step 3: Cross multiply
    2,479.46x = 3,420.47 × 1,484.54
  4. Step 4: Simplify right side
    2,479.46x = 5,077,824.53
  5. Step 5: Solve for x
    x = 5,077,824.53/2,479.46
  6. Step 6: Final answer
    x = 2,047.96

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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.