Home / 2,720.70-3,755.85-2,048.76

Finding the Fourth Proportional to 2,720.70, 3,755.85 and 2,048.76

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Solution

The fourth proportional to 2,720.70, 3,755.85 and 2,048.76 is: 2,828.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.70 : 3,755.85 = 2,048.76 : x
  2. Step 2: Convert to fraction form
    2,720.70/3,755.85 = 2,048.76/x
  3. Step 3: Cross multiply
    2,720.70x = 3,755.85 × 2,048.76
  4. Step 4: Simplify right side
    2,720.70x = 7,694,835.25
  5. Step 5: Solve for x
    x = 7,694,835.25/2,720.70
  6. Step 6: Final answer
    x = 2,828.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.