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Finding the Fourth Proportional to 2,721.70, 3,730.70 and 2,683.36

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Solution

The fourth proportional to 2,721.70, 3,730.70 and 2,683.36 is: 3,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.70 : 3,730.70 = 2,683.36 : x
  2. Step 2: Convert to fraction form
    2,721.70/3,730.70 = 2,683.36/x
  3. Step 3: Cross multiply
    2,721.70x = 3,730.70 × 2,683.36
  4. Step 4: Simplify right side
    2,721.70x = 10,010,811.15
  5. Step 5: Solve for x
    x = 10,010,811.15/2,721.70
  6. Step 6: Final answer
    x = 3,678.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.