Home / 3,713.81-5,125.37-2,120.95

Finding the Fourth Proportional to 3,713.81, 5,125.37 and 2,120.95

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Solution

The fourth proportional to 3,713.81, 5,125.37 and 2,120.95 is: 2,927.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.81 : 5,125.37 = 2,120.95 : x
  2. Step 2: Convert to fraction form
    3,713.81/5,125.37 = 2,120.95/x
  3. Step 3: Cross multiply
    3,713.81x = 5,125.37 × 2,120.95
  4. Step 4: Simplify right side
    3,713.81x = 10,870,653.50
  5. Step 5: Solve for x
    x = 10,870,653.50/3,713.81
  6. Step 6: Final answer
    x = 2,927.09

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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.