Home / 3,159.69-4,739.74-1,310.95

Finding the Fourth Proportional to 3,159.69, 4,739.74 and 1,310.95

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Solution

The fourth proportional to 3,159.69, 4,739.74 and 1,310.95 is: 1,966.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.69 : 4,739.74 = 1,310.95 : x
  2. Step 2: Convert to fraction form
    3,159.69/4,739.74 = 1,310.95/x
  3. Step 3: Cross multiply
    3,159.69x = 4,739.74 × 1,310.95
  4. Step 4: Simplify right side
    3,159.69x = 6,213,568.49
  5. Step 5: Solve for x
    x = 6,213,568.49/3,159.69
  6. Step 6: Final answer
    x = 1,966.51

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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.