Home / 5,654.61-8,480.61-2,145.02

Finding the Fourth Proportional to 5,654.61, 8,480.61 and 2,145.02

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Solution

The fourth proportional to 5,654.61, 8,480.61 and 2,145.02 is: 3,217.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,654.61 : 8,480.61 = 2,145.02 : x
  2. Step 2: Convert to fraction form
    5,654.61/8,480.61 = 2,145.02/x
  3. Step 3: Cross multiply
    5,654.61x = 8,480.61 × 2,145.02
  4. Step 4: Simplify right side
    5,654.61x = 18,191,035.66
  5. Step 5: Solve for x
    x = 18,191,035.66/5,654.61
  6. Step 6: Final answer
    x = 3,217.03

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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.