Home / 2,695.80-4,043.70-1,720.56

Finding the Fourth Proportional to 2,695.80, 4,043.70 and 1,720.56

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Solution

The fourth proportional to 2,695.80, 4,043.70 and 1,720.56 is: 2,580.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.80 : 4,043.70 = 1,720.56 : x
  2. Step 2: Convert to fraction form
    2,695.80/4,043.70 = 1,720.56/x
  3. Step 3: Cross multiply
    2,695.80x = 4,043.70 × 1,720.56
  4. Step 4: Simplify right side
    2,695.80x = 6,957,428.47
  5. Step 5: Solve for x
    x = 6,957,428.47/2,695.80
  6. Step 6: Final answer
    x = 2,580.84

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1.5x scale

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.