Home / 4,678.40-6,456.16-2,553.88

Finding the Fourth Proportional to 4,678.40, 6,456.16 and 2,553.88

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Solution

The fourth proportional to 4,678.40, 6,456.16 and 2,553.88 is: 3,524.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.40 : 6,456.16 = 2,553.88 : x
  2. Step 2: Convert to fraction form
    4,678.40/6,456.16 = 2,553.88/x
  3. Step 3: Cross multiply
    4,678.40x = 6,456.16 × 2,553.88
  4. Step 4: Simplify right side
    4,678.40x = 16,488,257.90
  5. Step 5: Solve for x
    x = 16,488,257.90/4,678.40
  6. Step 6: Final answer
    x = 3,524.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.