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Finding the Fourth Proportional to 2,479.10, 3,714.60 and 2,114.60

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Solution

The fourth proportional to 2,479.10, 3,714.60 and 2,114.60 is: 3,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.10 : 3,714.60 = 2,114.60 : x
  2. Step 2: Convert to fraction form
    2,479.10/3,714.60 = 2,114.60/x
  3. Step 3: Cross multiply
    2,479.10x = 3,714.60 × 2,114.60
  4. Step 4: Simplify right side
    2,479.10x = 7,854,893.16
  5. Step 5: Solve for x
    x = 7,854,893.16/2,479.10
  6. Step 6: Final answer
    x = 3,168.45

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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.