Home / 4,818.60-7,221.51-2,478.51

Finding the Fourth Proportional to 4,818.60, 7,221.51 and 2,478.51

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Solution

The fourth proportional to 4,818.60, 7,221.51 and 2,478.51 is: 3,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.60 : 7,221.51 = 2,478.51 : x
  2. Step 2: Convert to fraction form
    4,818.60/7,221.51 = 2,478.51/x
  3. Step 3: Cross multiply
    4,818.60x = 7,221.51 × 2,478.51
  4. Step 4: Simplify right side
    4,818.60x = 17,898,584.75
  5. Step 5: Solve for x
    x = 17,898,584.75/4,818.60
  6. Step 6: Final answer
    x = 3,714.48

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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.