Home / 3,170.43-4,756.10-979.35

Finding the Fourth Proportional to 3,170.43, 4,756.10 and 979.35

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Solution

The fourth proportional to 3,170.43, 4,756.10 and 979.35 is: 1,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.43 : 4,756.10 = 979.35 : x
  2. Step 2: Convert to fraction form
    3,170.43/4,756.10 = 979.35/x
  3. Step 3: Cross multiply
    3,170.43x = 4,756.10 × 979.35
  4. Step 4: Simplify right side
    3,170.43x = 4,657,886.54
  5. Step 5: Solve for x
    x = 4,657,886.54/3,170.43
  6. Step 6: Final answer
    x = 1,469.17

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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.