Home / 3,046.85-4,204.76-1,720.79

Finding the Fourth Proportional to 3,046.85, 4,204.76 and 1,720.79

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Solution

The fourth proportional to 3,046.85, 4,204.76 and 1,720.79 is: 2,374.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,046.85 : 4,204.76 = 1,720.79 : x
  2. Step 2: Convert to fraction form
    3,046.85/4,204.76 = 1,720.79/x
  3. Step 3: Cross multiply
    3,046.85x = 4,204.76 × 1,720.79
  4. Step 4: Simplify right side
    3,046.85x = 7,235,479.33
  5. Step 5: Solve for x
    x = 7,235,479.33/3,046.85
  6. Step 6: Final answer
    x = 2,374.74

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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.