Home / 3,100.45-4,631.84-2,215.93

Finding the Fourth Proportional to 3,100.45, 4,631.84 and 2,215.93

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Solution

The fourth proportional to 3,100.45, 4,631.84 and 2,215.93 is: 3,310.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.45 : 4,631.84 = 2,215.93 : x
  2. Step 2: Convert to fraction form
    3,100.45/4,631.84 = 2,215.93/x
  3. Step 3: Cross multiply
    3,100.45x = 4,631.84 × 2,215.93
  4. Step 4: Simplify right side
    3,100.45x = 10,263,810.55
  5. Step 5: Solve for x
    x = 10,263,810.55/3,100.45
  6. Step 6: Final answer
    x = 3,310.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.