Home / 2,636.45-3,638.81-1,693.44

Finding the Fourth Proportional to 2,636.45, 3,638.81 and 1,693.44

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Solution

The fourth proportional to 2,636.45, 3,638.81 and 1,693.44 is: 2,337.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.45 : 3,638.81 = 1,693.44 : x
  2. Step 2: Convert to fraction form
    2,636.45/3,638.81 = 1,693.44/x
  3. Step 3: Cross multiply
    2,636.45x = 3,638.81 × 1,693.44
  4. Step 4: Simplify right side
    2,636.45x = 6,162,106.41
  5. Step 5: Solve for x
    x = 6,162,106.41/2,636.45
  6. Step 6: Final answer
    x = 2,337.27

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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.