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Finding the Fourth Proportional to 4,728.16, 7,090.80 and 3,093.40

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Solution

The fourth proportional to 4,728.16, 7,090.80 and 3,093.40 is: 4,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,728.16 : 7,090.80 = 3,093.40 : x
  2. Step 2: Convert to fraction form
    4,728.16/7,090.80 = 3,093.40/x
  3. Step 3: Cross multiply
    4,728.16x = 7,090.80 × 3,093.40
  4. Step 4: Simplify right side
    4,728.16x = 21,934,680.72
  5. Step 5: Solve for x
    x = 21,934,680.72/4,728.16
  6. Step 6: Final answer
    x = 4,639.16

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