Home / 2,742.09-3,782.93-1,680.27

Finding the Fourth Proportional to 2,742.09, 3,782.93 and 1,680.27

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Solution

The fourth proportional to 2,742.09, 3,782.93 and 1,680.27 is: 2,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.09 : 3,782.93 = 1,680.27 : x
  2. Step 2: Convert to fraction form
    2,742.09/3,782.93 = 1,680.27/x
  3. Step 3: Cross multiply
    2,742.09x = 3,782.93 × 1,680.27
  4. Step 4: Simplify right side
    2,742.09x = 6,356,335.39
  5. Step 5: Solve for x
    x = 6,356,335.39/2,742.09
  6. Step 6: Final answer
    x = 2,318.06

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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.