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Finding the Fourth Proportional to 5,641.03, 8,455.62 and 4,982.20

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Solution

The fourth proportional to 5,641.03, 8,455.62 and 4,982.20 is: 7,468.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.03 : 8,455.62 = 4,982.20 : x
  2. Step 2: Convert to fraction form
    5,641.03/8,455.62 = 4,982.20/x
  3. Step 3: Cross multiply
    5,641.03x = 8,455.62 × 4,982.20
  4. Step 4: Simplify right side
    5,641.03x = 42,127,589.96
  5. Step 5: Solve for x
    x = 42,127,589.96/5,641.03
  6. Step 6: Final answer
    x = 7,468.07

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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.