Home / 2,720.64-4,081.05-1,295.58

Finding the Fourth Proportional to 2,720.64, 4,081.05 and 1,295.58

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Solution

The fourth proportional to 2,720.64, 4,081.05 and 1,295.58 is: 1,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.64 : 4,081.05 = 1,295.58 : x
  2. Step 2: Convert to fraction form
    2,720.64/4,081.05 = 1,295.58/x
  3. Step 3: Cross multiply
    2,720.64x = 4,081.05 × 1,295.58
  4. Step 4: Simplify right side
    2,720.64x = 5,287,299.88
  5. Step 5: Solve for x
    x = 5,287,299.88/2,720.64
  6. Step 6: Final answer
    x = 1,943.40

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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.