Home / 5,644.30-8,460.45-2,720.70

Finding the Fourth Proportional to 5,644.30, 8,460.45 and 2,720.70

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Solution

The fourth proportional to 5,644.30, 8,460.45 and 2,720.70 is: 4,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.30 : 8,460.45 = 2,720.70 : x
  2. Step 2: Convert to fraction form
    5,644.30/8,460.45 = 2,720.70/x
  3. Step 3: Cross multiply
    5,644.30x = 8,460.45 × 2,720.70
  4. Step 4: Simplify right side
    5,644.30x = 23,018,346.32
  5. Step 5: Solve for x
    x = 23,018,346.32/5,644.30
  6. Step 6: Final answer
    x = 4,078.16

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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.