Home / 1,830.80-2,749.40-1,773.20

Finding the Fourth Proportional to 1,830.80, 2,749.40 and 1,773.20

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Solution

The fourth proportional to 1,830.80, 2,749.40 and 1,773.20 is: 2,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830.80 : 2,749.40 = 1,773.20 : x
  2. Step 2: Convert to fraction form
    1,830.80/2,749.40 = 1,773.20/x
  3. Step 3: Cross multiply
    1,830.80x = 2,749.40 × 1,773.20
  4. Step 4: Simplify right side
    1,830.80x = 4,875,236.08
  5. Step 5: Solve for x
    x = 4,875,236.08/1,830.80
  6. Step 6: Final answer
    x = 2,662.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.