Home / 4,300.80-5,930.37-2,805.90

Finding the Fourth Proportional to 4,300.80, 5,930.37 and 2,805.90

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Solution

The fourth proportional to 4,300.80, 5,930.37 and 2,805.90 is: 3,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,300.80 : 5,930.37 = 2,805.90 : x
  2. Step 2: Convert to fraction form
    4,300.80/5,930.37 = 2,805.90/x
  3. Step 3: Cross multiply
    4,300.80x = 5,930.37 × 2,805.90
  4. Step 4: Simplify right side
    4,300.80x = 16,640,025.18
  5. Step 5: Solve for x
    x = 16,640,025.18/4,300.80
  6. Step 6: Final answer
    x = 3,869.05

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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.