Home / 3,179.90-4,771.51-2,309.58

Finding the Fourth Proportional to 3,179.90, 4,771.51 and 2,309.58

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Solution

The fourth proportional to 3,179.90, 4,771.51 and 2,309.58 is: 3,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.90 : 4,771.51 = 2,309.58 : x
  2. Step 2: Convert to fraction form
    3,179.90/4,771.51 = 2,309.58/x
  3. Step 3: Cross multiply
    3,179.90x = 4,771.51 × 2,309.58
  4. Step 4: Simplify right side
    3,179.90x = 11,020,178.29
  5. Step 5: Solve for x
    x = 11,020,178.29/3,179.90
  6. Step 6: Final answer
    x = 3,465.57

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1.5x scale

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.