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Finding the Fourth Proportional to 2,688.96, 3,704.16 and 2,297.28

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Solution

The fourth proportional to 2,688.96, 3,704.16 and 2,297.28 is: 3,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.96 : 3,704.16 = 2,297.28 : x
  2. Step 2: Convert to fraction form
    2,688.96/3,704.16 = 2,297.28/x
  3. Step 3: Cross multiply
    2,688.96x = 3,704.16 × 2,297.28
  4. Step 4: Simplify right side
    2,688.96x = 8,509,492.68
  5. Step 5: Solve for x
    x = 8,509,492.68/2,688.96
  6. Step 6: Final answer
    x = 3,164.60

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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.