Home / 2,478.60-3,720.33-2,021.94

Finding the Fourth Proportional to 2,478.60, 3,720.33 and 2,021.94

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Solution

The fourth proportional to 2,478.60, 3,720.33 and 2,021.94 is: 3,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.60 : 3,720.33 = 2,021.94 : x
  2. Step 2: Convert to fraction form
    2,478.60/3,720.33 = 2,021.94/x
  3. Step 3: Cross multiply
    2,478.60x = 3,720.33 × 2,021.94
  4. Step 4: Simplify right side
    2,478.60x = 7,522,284.04
  5. Step 5: Solve for x
    x = 7,522,284.04/2,478.60
  6. Step 6: Final answer
    x = 3,034.89

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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.