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Finding the Fourth Proportional to 4,553.96, 6,829.16 and 1,780.32

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Solution

The fourth proportional to 4,553.96, 6,829.16 and 1,780.32 is: 2,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,553.96 : 6,829.16 = 1,780.32 : x
  2. Step 2: Convert to fraction form
    4,553.96/6,829.16 = 1,780.32/x
  3. Step 3: Cross multiply
    4,553.96x = 6,829.16 × 1,780.32
  4. Step 4: Simplify right side
    4,553.96x = 12,158,090.13
  5. Step 5: Solve for x
    x = 12,158,090.13/4,553.96
  6. Step 6: Final answer
    x = 2,669.78

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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.