Home / 2,723.40-3,757.95-1,728.72

Finding the Fourth Proportional to 2,723.40, 3,757.95 and 1,728.72

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Solution

The fourth proportional to 2,723.40, 3,757.95 and 1,728.72 is: 2,385.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.40 : 3,757.95 = 1,728.72 : x
  2. Step 2: Convert to fraction form
    2,723.40/3,757.95 = 1,728.72/x
  3. Step 3: Cross multiply
    2,723.40x = 3,757.95 × 1,728.72
  4. Step 4: Simplify right side
    2,723.40x = 6,496,443.32
  5. Step 5: Solve for x
    x = 6,496,443.32/2,723.40
  6. Step 6: Final answer
    x = 2,385.42

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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.