Home / 4,728.90-7,103.48-2,881.02

Finding the Fourth Proportional to 4,728.90, 7,103.48 and 2,881.02

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Solution

The fourth proportional to 4,728.90, 7,103.48 and 2,881.02 is: 4,327.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,728.90 : 7,103.48 = 2,881.02 : x
  2. Step 2: Convert to fraction form
    4,728.90/7,103.48 = 2,881.02/x
  3. Step 3: Cross multiply
    4,728.90x = 7,103.48 × 2,881.02
  4. Step 4: Simplify right side
    4,728.90x = 20,465,253.54
  5. Step 5: Solve for x
    x = 20,465,253.54/4,728.90
  6. Step 6: Final answer
    x = 4,327.70

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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.