Home / 3,281.15-4,921.70-1,406.77

Finding the Fourth Proportional to 3,281.15, 4,921.70 and 1,406.77

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Solution

The fourth proportional to 3,281.15, 4,921.70 and 1,406.77 is: 2,110.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.15 : 4,921.70 = 1,406.77 : x
  2. Step 2: Convert to fraction form
    3,281.15/4,921.70 = 1,406.77/x
  3. Step 3: Cross multiply
    3,281.15x = 4,921.70 × 1,406.77
  4. Step 4: Simplify right side
    3,281.15x = 6,923,680.57
  5. Step 5: Solve for x
    x = 6,923,680.57/3,281.15
  6. Step 6: Final answer
    x = 2,110.14

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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.