Home / 2,476.79-3,711.21-1,815.60

Finding the Fourth Proportional to 2,476.79, 3,711.21 and 1,815.60

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Solution

The fourth proportional to 2,476.79, 3,711.21 and 1,815.60 is: 2,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.79 : 3,711.21 = 1,815.60 : x
  2. Step 2: Convert to fraction form
    2,476.79/3,711.21 = 1,815.60/x
  3. Step 3: Cross multiply
    2,476.79x = 3,711.21 × 1,815.60
  4. Step 4: Simplify right side
    2,476.79x = 6,738,072.88
  5. Step 5: Solve for x
    x = 6,738,072.88/2,476.79
  6. Step 6: Final answer
    x = 2,720.49

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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.