Home / 4,772-7,149.66-3,312.08

Finding the Fourth Proportional to 4,772, 7,149.66 and 3,312.08

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Solution

The fourth proportional to 4,772, 7,149.66 and 3,312.08 is: 4,962.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,772 : 7,149.66 = 3,312.08 : x
  2. Step 2: Convert to fraction form
    4,772/7,149.66 = 3,312.08/x
  3. Step 3: Cross multiply
    4,772x = 7,149.66 × 3,312.08
  4. Step 4: Simplify right side
    4,772x = 23,680,245.89
  5. Step 5: Solve for x
    x = 23,680,245.89/4,772
  6. Step 6: Final answer
    x = 4,962.33

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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.