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Finding the Fourth Proportional to 5,223.84, 7,832.64 and 1,760.64

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Solution

The fourth proportional to 5,223.84, 7,832.64 and 1,760.64 is: 2,639.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.84 : 7,832.64 = 1,760.64 : x
  2. Step 2: Convert to fraction form
    5,223.84/7,832.64 = 1,760.64/x
  3. Step 3: Cross multiply
    5,223.84x = 7,832.64 × 1,760.64
  4. Step 4: Simplify right side
    5,223.84x = 13,790,459.29
  5. Step 5: Solve for x
    x = 13,790,459.29/5,223.84
  6. Step 6: Final answer
    x = 2,639.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.