Home / 3,149.58-4,346.56-1,890.74

Finding the Fourth Proportional to 3,149.58, 4,346.56 and 1,890.74

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Solution

The fourth proportional to 3,149.58, 4,346.56 and 1,890.74 is: 2,609.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.58 : 4,346.56 = 1,890.74 : x
  2. Step 2: Convert to fraction form
    3,149.58/4,346.56 = 1,890.74/x
  3. Step 3: Cross multiply
    3,149.58x = 4,346.56 × 1,890.74
  4. Step 4: Simplify right side
    3,149.58x = 8,218,228.08
  5. Step 5: Solve for x
    x = 8,218,228.08/3,149.58
  6. Step 6: Final answer
    x = 2,609.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.