Home / 3,159.40-4,739.46-1,310.74

Finding the Fourth Proportional to 3,159.40, 4,739.46 and 1,310.74

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Solution

The fourth proportional to 3,159.40, 4,739.46 and 1,310.74 is: 1,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.40 : 4,739.46 = 1,310.74 : x
  2. Step 2: Convert to fraction form
    3,159.40/4,739.46 = 1,310.74/x
  3. Step 3: Cross multiply
    3,159.40x = 4,739.46 × 1,310.74
  4. Step 4: Simplify right side
    3,159.40x = 6,212,199.80
  5. Step 5: Solve for x
    x = 6,212,199.80/3,159.40
  6. Step 6: Final answer
    x = 1,966.26

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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.