Home / 2,930.22-4,043.55-1,603.83

Finding the Fourth Proportional to 2,930.22, 4,043.55 and 1,603.83

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Solution

The fourth proportional to 2,930.22, 4,043.55 and 1,603.83 is: 2,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.22 : 4,043.55 = 1,603.83 : x
  2. Step 2: Convert to fraction form
    2,930.22/4,043.55 = 1,603.83/x
  3. Step 3: Cross multiply
    2,930.22x = 4,043.55 × 1,603.83
  4. Step 4: Simplify right side
    2,930.22x = 6,485,166.80
  5. Step 5: Solve for x
    x = 6,485,166.80/2,930.22
  6. Step 6: Final answer
    x = 2,213.20

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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.