Home / 3,899.95-5,378.83-2,946.04

Finding the Fourth Proportional to 3,899.95, 5,378.83 and 2,946.04

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Solution

The fourth proportional to 3,899.95, 5,378.83 and 2,946.04 is: 4,063.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.95 : 5,378.83 = 2,946.04 : x
  2. Step 2: Convert to fraction form
    3,899.95/5,378.83 = 2,946.04/x
  3. Step 3: Cross multiply
    3,899.95x = 5,378.83 × 2,946.04
  4. Step 4: Simplify right side
    3,899.95x = 15,846,227.52
  5. Step 5: Solve for x
    x = 15,846,227.52/3,899.95
  6. Step 6: Final answer
    x = 4,063.19

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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.