Home / 5,118.02-7,678.59-2,654.60

Finding the Fourth Proportional to 5,118.02, 7,678.59 and 2,654.60

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Solution

The fourth proportional to 5,118.02, 7,678.59 and 2,654.60 is: 3,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.02 : 7,678.59 = 2,654.60 : x
  2. Step 2: Convert to fraction form
    5,118.02/7,678.59 = 2,654.60/x
  3. Step 3: Cross multiply
    5,118.02x = 7,678.59 × 2,654.60
  4. Step 4: Simplify right side
    5,118.02x = 20,383,585.01
  5. Step 5: Solve for x
    x = 20,383,585.01/5,118.02
  6. Step 6: Final answer
    x = 3,982.71

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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.