Home / 4,810.60-7,212.30-2,621.80

Finding the Fourth Proportional to 4,810.60, 7,212.30 and 2,621.80

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Solution

The fourth proportional to 4,810.60, 7,212.30 and 2,621.80 is: 3,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.60 : 7,212.30 = 2,621.80 : x
  2. Step 2: Convert to fraction form
    4,810.60/7,212.30 = 2,621.80/x
  3. Step 3: Cross multiply
    4,810.60x = 7,212.30 × 2,621.80
  4. Step 4: Simplify right side
    4,810.60x = 18,909,208.14
  5. Step 5: Solve for x
    x = 18,909,208.14/4,810.60
  6. Step 6: Final answer
    x = 3,930.74

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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.