Home / 2,748.18-3,791.40-1,628.70

Finding the Fourth Proportional to 2,748.18, 3,791.40 and 1,628.70

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Solution

The fourth proportional to 2,748.18, 3,791.40 and 1,628.70 is: 2,246.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.18 : 3,791.40 = 1,628.70 : x
  2. Step 2: Convert to fraction form
    2,748.18/3,791.40 = 1,628.70/x
  3. Step 3: Cross multiply
    2,748.18x = 3,791.40 × 1,628.70
  4. Step 4: Simplify right side
    2,748.18x = 6,175,053.18
  5. Step 5: Solve for x
    x = 6,175,053.18/2,748.18
  6. Step 6: Final answer
    x = 2,246.96

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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.