Home / 3,120.98-4,671.68-1,713.47

Finding the Fourth Proportional to 3,120.98, 4,671.68 and 1,713.47

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Solution

The fourth proportional to 3,120.98, 4,671.68 and 1,713.47 is: 2,564.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.98 : 4,671.68 = 1,713.47 : x
  2. Step 2: Convert to fraction form
    3,120.98/4,671.68 = 1,713.47/x
  3. Step 3: Cross multiply
    3,120.98x = 4,671.68 × 1,713.47
  4. Step 4: Simplify right side
    3,120.98x = 8,004,751.60
  5. Step 5: Solve for x
    x = 8,004,751.60/3,120.98
  6. Step 6: Final answer
    x = 2,564.82

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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.