Home / 3,389.15-5,086.46-1,830.92

Finding the Fourth Proportional to 3,389.15, 5,086.46 and 1,830.92

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Solution

The fourth proportional to 3,389.15, 5,086.46 and 1,830.92 is: 2,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.15 : 5,086.46 = 1,830.92 : x
  2. Step 2: Convert to fraction form
    3,389.15/5,086.46 = 1,830.92/x
  3. Step 3: Cross multiply
    3,389.15x = 5,086.46 × 1,830.92
  4. Step 4: Simplify right side
    3,389.15x = 9,312,880.49
  5. Step 5: Solve for x
    x = 9,312,880.49/3,389.15
  6. Step 6: Final answer
    x = 2,747.85

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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.