Home / 5,403.88-8,105.70-4,671.28

Finding the Fourth Proportional to 5,403.88, 8,105.70 and 4,671.28

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Solution

The fourth proportional to 5,403.88, 8,105.70 and 4,671.28 is: 7,006.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.88 : 8,105.70 = 4,671.28 : x
  2. Step 2: Convert to fraction form
    5,403.88/8,105.70 = 4,671.28/x
  3. Step 3: Cross multiply
    5,403.88x = 8,105.70 × 4,671.28
  4. Step 4: Simplify right side
    5,403.88x = 37,863,994.30
  5. Step 5: Solve for x
    x = 37,863,994.30/5,403.88
  6. Step 6: Final answer
    x = 7,006.82

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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.