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Finding the Fourth Proportional to 5,358.80, 8,028.60 and 4,744.40

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Solution

The fourth proportional to 5,358.80, 8,028.60 and 4,744.40 is: 7,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.80 : 8,028.60 = 4,744.40 : x
  2. Step 2: Convert to fraction form
    5,358.80/8,028.60 = 4,744.40/x
  3. Step 3: Cross multiply
    5,358.80x = 8,028.60 × 4,744.40
  4. Step 4: Simplify right side
    5,358.80x = 38,090,889.84
  5. Step 5: Solve for x
    x = 38,090,889.84/5,358.80
  6. Step 6: Final answer
    x = 7,108.10

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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.