Home / 3,118.80-4,676.28-1,066.96

Finding the Fourth Proportional to 3,118.80, 4,676.28 and 1,066.96

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Solution

The fourth proportional to 3,118.80, 4,676.28 and 1,066.96 is: 1,599.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.80 : 4,676.28 = 1,066.96 : x
  2. Step 2: Convert to fraction form
    3,118.80/4,676.28 = 1,066.96/x
  3. Step 3: Cross multiply
    3,118.80x = 4,676.28 × 1,066.96
  4. Step 4: Simplify right side
    3,118.80x = 4,989,403.71
  5. Step 5: Solve for x
    x = 4,989,403.71/3,118.80
  6. Step 6: Final answer
    x = 1,599.78

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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.