Home / 3,360.98-4,639.86-2,102.78

Finding the Fourth Proportional to 3,360.98, 4,639.86 and 2,102.78

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Solution

The fourth proportional to 3,360.98, 4,639.86 and 2,102.78 is: 2,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.98 : 4,639.86 = 2,102.78 : x
  2. Step 2: Convert to fraction form
    3,360.98/4,639.86 = 2,102.78/x
  3. Step 3: Cross multiply
    3,360.98x = 4,639.86 × 2,102.78
  4. Step 4: Simplify right side
    3,360.98x = 9,756,604.81
  5. Step 5: Solve for x
    x = 9,756,604.81/3,360.98
  6. Step 6: Final answer
    x = 2,902.90

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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.